Add Lights Component

[JamesTKhan]

No review expected on this PR due to the size of it.

This PR add a Light Component and lighting overhaul.

• Lighting overhaul for Directional and Ambient lighting
• Add new Light Component and accompanying Light Shader which prefixes shaders with additional shader lighting code.
• Add new Add Component Dialog which only supports Light Components for now.
• LightComponents are duplicated when duplicating a GameObject
• Update water shader to fade out water foam over distance, to minimize ugly 1 pixel white lines from a distance.
• Add new Gizmo feature for displaying decal Icons over objects like Light sources.
• When max point and spot lights are reached, no more can be added. Will adjust the values as we go, or possibly make these configurable down the road.

Note: With this lighting overhaul (based on OGLDev tutorials) the scene may appear brighter, and you can adjust ambient/directional intensity as needed.

Note: Adding lights on android combined with water does create a noticeable performance hit when tested on a Note 8 phone (2017) but this is expected. Android support is limited right now but optimization could be looked into down the road like a simplified water that uses textures instead of frame buffer reflections.

There are more enhancements I would like to make but this PR is big enough already.

Items left to do

• Saving of light components
• Clear gizmos on scene switch
• handling max point and spot lights
• Test Windows/Mac/HTML/Android
• update CHANGES files

2022-06-10.10-40-32.mp4