[Fix] Gig.moment relative origin

[slurmulon]

Changes

• :bug: Fixed calculation in Gig.moment to properly globalize duration and apply offset based on iterations
• :bug: Fixed Gig.drift to consider skew and use Gig.moment instead of last time (which may not correlate with a beat, which was the bug)
• :bug: Fixed several other getters to consider skewed origin to ensure accurate calculations even if run-time has been paused/resumed
• :clock1: Introduced Gig.offset for determining offset of run-time playback by total iterations (in steps)
• :clock1: Introduced Gig.globalize method for converting local durations into their global values (based on run-time offset)
• :shipit: v3.0.0-beta.13

Future

• :scroll: Add documentation for new getters and methods
• :microscope: Tests tests tests