Added HandOnCanvas Example

this example shows cell rendering with a two-dimensional color ramp
image and how to use Web-Fusee to draw onto a transparent canvas
overlaying HTML
Ignore changes to JSIL submodule

This should prevent inadvertant updates to the JSIL submodule.
Merge branch 'develop' into feat_text_gui

Conflicts:
	src/Engine/Core/ShaderEffect.cs