Clarify licensing per https://github.com/serai-dex/serai/issues/13

Implements bullets 2-4 of 
https://github.com/serai-dex/serai/issues/13#issuecomment-1212689876.

LICENSE

@@ -0,0 +1,6 @@
+Serai crates are licensed under one of two licenses, either MIT or AGPL-3.0,
+depending on the crate in question. Each crate declares their license in their
+`Cargo.toml` and includes a `LICENSE` file detailing its status. Additionally,
+a full copy of the AGPL-3.0 License is included in the root of this repository
+as a reference text. This copy should be provided with any distribution of a
+crate licensed under the AGPL-3.0, as per its terms.

README.md

@@ -7,20 +7,24 @@ wallet.
 
 ### Layout
 
-- `docs` - Documentation on the Serai protocol.
+- `docs`: Documentation on the Serai protocol.
 
-- `coins` - Various coin libraries intended for usage in Serai yet also by the
-  wider community. This means they will always support the functionality Serai
-  needs, yet won't disadvantage other use cases when possible.
-
-- `crypto` - A series of composable cryptographic libraries built around the
+- `crypto`: A series of composable cryptographic libraries built around the
   `ff`/`group` APIs achieving a variety of tasks. These range from generic
   infrastructure, to our IETF-compliant FROST implementation, to a DLEq proof as
   needed for Bitcoin-Monero atomic swaps.
 
-- `processor` - A generic chain processor to process data for Serai and process
+- `coins`: Various coin libraries intended for usage in Serai yet also by the
+  wider community. This means they will always support the functionality Serai
+  needs, yet won't disadvantage other use cases when possible.
+
+- `processor`: A generic chain processor to process data for Serai and process
   events from Serai, executing transactions as expected and needed.
 
+- `contracts`: Smart Contracts implementing Serai's functionality.
+
+- `substrate`: Substrate crates used to instantiate the Serai network.
+
 ### Links
 
 - [Twitter](https://twitter.com/SeraiDEX):         https://twitter.com/SeraiDEX

coins/ethereum/LICENSE

@@ -1,6 +1,6 @@
 AGPL-3.0-only license
 
-Copyright (c) 2022 Luke Parker, Elizabeth Binks
+Copyright (c) 2022 Luke Parker
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License Version 3 as

contracts/extension/LICENSE

@@ -0,0 +1,15 @@
+AGPL-3.0-only license
+
+Copyright (c) 2022 Luke Parker
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License Version 3 as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.

contracts/multisig/LICENSE

@@ -0,0 +1,15 @@
+AGPL-3.0-only license
+
+Copyright (c) 2022 Luke Parker
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License Version 3 as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.

substrate/consensus/LICENSE

@@ -0,0 +1,15 @@
+AGPL-3.0-only license
+
+Copyright (c) 2022 Luke Parker
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License Version 3 as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.

substrate/node/LICENSE

@@ -0,0 +1,15 @@
+AGPL-3.0-only license
+
+Copyright (c) 2022 Luke Parker
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License Version 3 as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.

substrate/runtime/LICENSE

@@ -0,0 +1,15 @@
+AGPL-3.0-only license
+
+Copyright (c) 2022 Luke Parker
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License Version 3 as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.