Create mars-types crate

[larry0x]

Closes: #336

Create a mars-types crate as the single source of truth for all type definitions.

Three crates are merged into mars-types and deleted:

• mars-account-nft-types
• mars-rover-health-types
• mars-rover

There are 3 instances of duplicate codes which have been fixed (leaving only one copy):

• mars_rover::adapters::swap and mars_red_bank_types::swapper
• mars_rover::reentrancy_guard and mars_utils::guard
• mars_rover::msg and mars_red_bank_types::rewards_collector::credit_manager

The table below compares the previous locations of contents & their locations now:

Previous	Now
mars_account_nft_types	mars_types::account_nft
mars_params::types	mars_types::params (#338)
mars_red_bank_types	mars_types
mars_rover_health_types	mars_types::health
mars_rover::adapters	mars_types::adapters
mars_rover::coins	deleted (use cosmwasm_std::Coins instead)
mars_rover::error	mars_credit_manager::error
mars_rover::msg	mars_types::credit_manager
mars_rover::reentrancy_guard	deleted (use mars_utils::Guard instead)
mars_rover::traits	mars_types::traits
mars_zapper_base::msg	mars_types::zapper

[piobab]

Great job! LGTM