Ambient and Directional light updates

[JamesTKhan]

Support for only one Directional Light was left the same. I considered supporting multiple but don't see the value in it at this point in time. Could be expanded on later if multiple direction lights is really needed.

• Enable and fix ambient light dialog
• New dialog for directional light and new properties that save directional light settings in the Scene file.
• Update water shader to include directional light and ambient light

2022-05-26.00-21-51.mp4

[Dgzt]

I get this exception on linux:

Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Fragment shader:
0:102(2): error: initializer of type vec4 cannot be assigned to variable of type vec3

	at com.mbrlabs.mundus.commons.utils.ShaderUtils.compile(ShaderUtils.java:54)
	at com.mbrlabs.mundus.commons.shaders.WaterShader.<init>(WaterShader.java:70)
	at com.mbrlabs.mundus.editor.shader.Shaders.<clinit>(Shaders.kt:49)
	... 12 more

[09:12][Fatal][Log] Uncaught exception occurred, error report will be saved

[JamesTKhan]

I get this exception on linux:

Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Fragment shader:
0:102(2): error: initializer of type vec4 cannot be assigned to variable of type vec3

	at com.mbrlabs.mundus.commons.utils.ShaderUtils.compile(ShaderUtils.java:54)
	at com.mbrlabs.mundus.commons.shaders.WaterShader.<init>(WaterShader.java:70)
	at com.mbrlabs.mundus.editor.shader.Shaders.<clinit>(Shaders.kt:49)
	... 12 more

[09:12][Fatal][Log] Uncaught exception occurred, error report will be saved

@Dgzt Good catch this should be fixed now.