Magicshards Staking Program

• Should be able to whitelist a collection. Each collection has its own reward rate. (tokens/gem/sec).
• Should be able to stake an NFT from a whitelisted collection.
• The reward should be calculated based on the lock factor/duration.
• Should be able to whitelist a mint address (for fungible tokens).
• Should be able to stake fungible tokens.
• Should be able to remove an address from the whitelist.

TODO:

• Update lib so functions just create the instructions.
• Add instruction for deleting a manager account.