Fixing the grid and fixing the sensor.

Conflicts:
	source/scenario/scenario2f.vwf.yaml
	source/scenario/scenario3a.vwf.yaml
Fixed battery values and added some VO
Added scenarios and some more blockly functionality.

Conflicts:
	source/scenario/scenario3b.vwf.yaml
Reverting some changes
A bit more VO.
And more VO...

Conflicts:
	source/marsGameSound.vwf.yaml
Scaffolding updates for Scenarios 2 and 3.
Minor fixes - added in loop blocks for level 3 scenarios
Fixes some trigger naming issues.
Fixes some PR comments and some earlier scenario bugs. Also fixes some issues with sensors/track anomalies failing to reset.
Start at 1a again...
Fixes issue with sensor reset declaration.
A bit of code cleanup.
Merge pull request #293 from virtual-world-framework/scaffolding-fixes

New VO + All Levels Scaffolded