#4255 Add supply module that passively tracks the supplies of a chain
- Renamed `x/distribution` `ModuleName`
  - Genesis JSON and CLI now use `distribution` instead of `distr`
- Introduce `ModuleAccount` type, which tracks the flow of coins held within a module
- Replaced `FeeCollectorKeeper` for a `ModuleAccount`
- Replaced the staking `Pool`, which coins are now held by the `BondedPool` and `NotBonded` module accounts
  - The `NotBonded` module account now only keeps track of the not bonded tokens within staking, instead of the whole chain 
- #3628 Replaced governance's burn and deposit accounts for a `ModuleAccount`
- Added a `ModuleAccount` for the distribution module
- Added a `ModuleAccount` for the mint module
#4472 validation for crisis genesis