## Link to GitHub Issue or related Pull Request, if one exists
n/a
## Description of change
Similar to #797, draw an overlay to debug touch issues for reflec beat.
For rb, we draw on the ImGui surface. Draw horizontal and vertical line
for triggered sensors, and also a bounding box if scaling is in use.
Make small tweaks to how scaling works.
## Testing
Verified volzza 2 / reflesia / 1st game (landscape KBR)