Initial version of Effects class.
This is a set of changes to introduce an Effect class. This class can read and write the EFXDATA.ZDT
files that are part of a Zoom R16 project. Not all capabilities are exposed through this class at this time, though it can read and write the following settings:
- Whether the SEND REVERB effect is ON or OFF
- If on, the SEND REVERB patch number and name
- Whether the SEND CHORUS effect is ON or OFF
- If on, the SEND CHORUS patch number and name