WRoboclaw Mock Encoders Move Too Slow for Testing Purposes.

[bennowotny]

WRoboclawMock Request: Have the mock encoders move faster.

Evidence of problem: After having run the mock motors at full power for ~13 hours, the joint moved <5% of a rotation. This is probably too slow to efficiently run simulations.

Suggested Solution: Add a static constant scalar TIME_WARP multiplier (default to 1) to the MockVelCtrl class and propagate it upstream to be set in the config *.yaml files.