- Introduced a new Light type : LightProbes that are lights holding Image based Lighting information that are sent to the shader. For now, only the closest LightProbe from a geometry is sent to the shader. This will be enhanced later as it's obviously not the best way to handle this.
- Added a LightProbeFactory for easy creation and rendering of LightPorbes and associated maps. The maps generation process can also be monitored through a Listener class.
- Added various utility classses for debuging purpose.
- Added a new test case for environment with multiple LightProbes.
- Adapted the previous test case to the new system.
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