DForceAdapter Unit test

[dhruvinparikh]

There is uncertainty of protocols distributing rewards. This should be handle dynamically by making web3 calls when test cases are executed.

This refactoring to dynamically determine the status of reward distribution can be applied across other protocol adapters as well.

This is with respect to this PR.

More.
Following unit tests are missing for DForceAdapter

• getAllAmountInTokenStake