Prop 207: Injective Mainnet Upgrade (v1.10)

This is a software upgrade proposal for the Injective Mainnet. If passed, this proposal would commit the Injective Chain to halt at block height 28864000 (approximately 14:00 UTC on March 17th 2023) and resume with the v1.10 version of the Injective Chain application binary.
More details can be found in the long form proposal: https://github.com/InjectiveLabs/injective-chain-releases/blob/master/docs/migration/injective-canonical-chain-10.md
This upgrade proposal adds several new capabilities, features, and improvements:
- To enhance trading experiences across Injective exchange dApps, the default subaccount in the Exchange module can now aggregate funds from the Bank module when placing orders. In addition, the available balance in the default subaccount is now credited to the Bank module.
- Fee recipient field is now optional when placing an order in the Exchange module
- Trading volume metadata is added to enable better tracking
- Allow smart contracts to push prices to the Oracle module via a relayer
- Increase the minimum deposit for a governance proposal to 50 INJ
- Allow arbitrary data in the Peggy module messages to execute spot market orders
- Add requirements for new validators to have at least a 2% commission
- Update the SignedBlockWindow in the Slashing module to 100000