token-2022: Add init transfer fee config

[joncinque]

Problem

We need to initialize fees on a mint.

Solution

Add that support. There's also a couple of field renames:

• fee_config_authority -> transfer_fee_config_authority
• withheld_withdraw_authority -> withdraw_withheld_authority (this is for consistency, and because I kept getting it wrong)

[mvines]

lgtm!