ECR223 test cases

[mmhh1910]

With the added ECR223 compatibility we need test cases for the following:

• Use approve and depositToken to deposit an ECR223 token into the FD contract. Expected: Updated user token balance
• Use Token.transfer to deposit an ECR223 token into the FD contract. Expected: Updated user token balance.
• Use approve and depositToken to deposit an ECR223 token that fails to implement approve/transferFrom into the FD contract. Expected: Sender does not lose funds
• Use Token.transfer to deposit an ECR223 token that fails to implement approve/transferFrom into the FD contract. Expected: Updated user token balance.