payback: refactor

[tac0turtle]

The design that is currently leading to off load this onto the client with a multisend. Client side we will take a snapshot of all the token owners for a specific mint. After this we will send tokens to the owners associated token account. If the owner does not have an account it will be created for them

• remove withdraw and deposit

todo:

• [x] cleanup fund
• [ ] implement client
• [ ] implement cli
• [ ] write tests

[tac0turtle]

moving client, cli and tests into a different PR.