Implement block emissions (#551)

* add genesis liquidity implementation

* add missing deposit event

* fix CI issues

* minor fixes

* make math safer

* fix fmt

* implement block emissions

* make remove liquidity an authorized call

* implement setting initial values for coins

* add genesis liquidity test & misc fixes

* updato develop latest

* fix rotation test

* fix licencing

* add fast-epoch feature

* only create the pool when adding liquidity first time

* add initial reward era test

* test whole pre ec security emissions

* fix clippy

* add swap-to-staked-sri feature

* rebase changes

* fix tests

* Remove accidentally commited ETH ABI files

* fix some pr comments

* Finish up fixing pr comments

* exclude SRI from is_allowed check

* Misc changes

---------

Co-authored-by: akildemir <aeg_asd@hotmail.com>
Co-authored-by: Luke Parker <lukeparker5132@gmail.com>

substrate/coins/pallet/src/lib.rs

@@ -159,7 +159,9 @@ pub mod pallet {
     ///
     /// Errors if any amount overflows.
     pub fn mint(to: Public, balance: Balance) -> Result<(), Error<T, I>> {
-      if !T::AllowMint::is_allowed(&balance) {
+      // If the coin isn't Serai, which we're always allowed to mint, and the mint isn't explicitly
+      // allowed, error
+      if (balance.coin != Coin::Serai) && (!T::AllowMint::is_allowed(&balance)) {
         Err(Error::<T, I>::MintNotAllowed)?;
       }