Token Holder Rewards Test Suite

[johnwhitton]

Is your feature request related to a problem? Please describe.
Currently token rewards are not consistently going to the fee-to address set in the factory.
This Issue is to write a test harness for this to enable the debugging of the issue and setting up a foundation for Token Holder Rewards.

Describe the solution you'd like

• Write a test utility to check that the fee_to receives liquidity pool tokens when liquidity is added to the pool.
• Also update the checkFactory deploy script to include the creation of a test suite of tokens and liquidity pools.
• Document the token holder rewards process flow including what happens upon minting, trading and withdrawal of liquidity.