collada. Changes collada input to remove '#' from source id.
collada. Add reading of collada effects.

Read FX effects library node.
Read FX effect node.
Read FX profile node.
Add read FX effects to collada resources.
Debug print of collada FX effects.
collada. Add access to FX effect fields.

Add access to effect emission color, ambient color, diffuse color, specular color, shininess factor and refraction index.
collada. Add reading of collada FX materials.

Add collada material data container.
Add list of materials to collada resources.
Add debug print of read collada materials.
collada. Minor style and naming changes.

Change description of collada containers to collada data.
Remove debug prints of collada node tags.
collada. Fix an issue when reading FX profile node.

When reading the technique, read the technique values from the technique phone child.
For now only a phone child is supported.