:recycle: Implement EIP 4626 - Token Vault Standard :rocket:

[refcell]

Implement a token vault standard based off of EIP 4626.

[milancermak]

I wanted to give this a go, I have some of it already done for a project I'm working on. However, since we don't have inheritance in Cairo plus there's, as of yet, no mint functionality in cairomate's ERC20 implementation, there's no straightforward way how to add it to the repo.

Do you have any opinion on how this module should be incorporated?