Use Solmate for ERC1155/ERC20/Others?

[devtooligan]

One of the main reasons we wrote a lot of our own contracts instead of using the popular OpenZeppelin library is because OZ's contracts are bloated and not optimized; we wanted to have control over what goes into the contract without the bloat.

Solmate is a gas optimized, audited, set of contracts that we are considering using. We are already using their 1155 implementation with the fCash wrapper. We also discussed using the Solmate ERC20 contract as well.

We should decide if we definitely want to use either or both of these contracts as well as others. We should also decide if we want to import the contracts direct from Solmate, or use some sort of wrapper, or copy/paste the code into our repo.