Fix review - removes TOKEN_ADDRESS_LIMIT logic in favor of a simple token whitelist

[FlacoJones]

Removes the following storage variables from TokenWhitelist.sol:

• TOKEN_ADDRESS_LIMIT

Removes the following methods from TokenWhitelist.sol:

• setTokenAddressLimit

Removes the following parameters from OpenQTokenWhitelist::constructor:

• uint256 _tokenAddressLimit

Removes the following methods from DepositManagerV1.sol:

• tokenAddressLimitReached

• Replaces the double-requires check for whitelist and tokenAddressLimitReached in favor of a simple requires

• Updates DepositManager.test.js, ClaimManager.test.js, OpenQTokenWhitelist.test.js and OpenQ.test.js to initialize the OpenQTokenWhitelist without token address limit

• Updates deploy script to properly deploy OpenQTokenWhitelist without token address limit

NOTE: It is now up to the protocol admin (OpenQ owners) to ensure the whitelist doesn't grow so large that it would cause an out of gas error on claim. We will only be adding a few whitelisted tokens

[IAm0x52]

Changes look good.

Token requirement has been simplified to just a whitelist. It makes the rest changes to support this revision. tokenAddressLimitReach method has been removed from DepositManagerV1. _tokenAddressLimit has been removed from TokenWhitelist constructor. TOKEN_ADDRESS_LIMIT has been removed along with it's setter. Tests have been updated to accommodate changes.