limit, alias members

- limit [int] -> [float]
- moved mono bool member to physicalstrip
- added AddAliasMembers meta function
- mono and karaoke aliases added to virtualstrip

prelim pester tests for potato pass

README.md

@@ -118,11 +118,11 @@ The following strip commands are available:
 - mute: bool
 - mono: bool
 - mc: bool
-- k: int, from 0 to 4
+- k/karaoke: int, from 0 to 4
 - solo: bool
 - A1-A5: bool
 - B1-B3: bool
-- limit: int, from -40 to 12
+- limit: float, from -40.00 to 12.00
 - gain: float, from -60.00 to 12.00
 - label: string
 - reverb: float, from 0.00 to 10.00