* Add basic savings strategy
Supports ukava
* Use clearer error message for ErrInvalidVaultStrategy
* Add invariants
* Separate specific vault/all vaults query, update depositor inconsistencies
* Update swagger
* Use single bkava AllowedVault for all bkava variants
* Do not use allowedVault.Denom for value
* Fix vault balance query
* Update query to list bkava vaults
* Add vaults query doc
* Update grpc query test with no supply
* Add earn hooks
* Handle errors
* Update outdated doc comments, make getAllowedVault_Raw private
* Fix outdated comments, lints
* Fix comment maths
* Use AccAddressFromBech32 to validate message addresses
* Change vault supply to shares
* Update deposit shares
* Use shares instead of supplied
* Update tests, fix share calculation
* Pass hard and savings keeper as pointer to earn keeper
* Update remaining failing test
* Add different share price test, fix comment for share price
* Add shares amount to events
* Additional share tests, use share to asset conversion for withdraw amount
* Update VaultTotalValue test
* Use sdk.Dec for vault shares instead of sdk.Int
* Add test for expensive 20:1 shares
* Update ConvertToShares comment for division, remove redundant test
* Add vault share tests
* Add query methods
* Add TotalDeposited rpc query
* All accounts and all denoms query wip
* Add query deposits
* Remove IsDenomSupported strategy method
This is not necessary and is already set in params allowed vaults
* Add Vaults, TotalDeposited queries
* Deposits query tests and fixes
* proto lints
* Add earn swagger docs
* Add cli query cmds
* Update init-new-chain.sh with usdx strategy and funds
* Add denom url query path for vaults
* Return a list of coins for each depositor instead of multiple deposit entries
