Upgraded to PVRT 3.0 library for POD loading.

Upgraded to PVRT 3.0 library for POD loading.
Added CC3PFXResource class to load PVR PFX effects files.

Added CC3PFXResource class to load PVR PFX effects files. Refactored CC3Resource
class hierarchy to handle resources other than model nodes. Added CC3NodesResource
class between CC3Resource & CC3PODResource classes.
CC3Resource instances are now managed in a cache after loading via the resourceFromFile: method.

CC3Resource instances are now managed in a cache after loading via the resourceFromFile: method.
Populate CC3Material with shaders and textures defined in a PFX file.

Parse PFX file into Obj-C objects and assemble and link. Load and configure
textures from definitions in PFX files. Create and compile GL program from
shader effects in PFX files. Apply GL program and textures defined in PFX
effect to CC3Material. Load PFX files from material definitions in POD files.
Tweaks to GL shader file loading and caching. Added PFX-based POD demo to
CC3DemoMashUp.
Refactored semantics into a combination of semantic and semantic index.

Refactored semantics into a combination of semantic and semantic index.
Redefined semantic population from GLSL variables to use combined semantic
and semantic index. Changed CC3GLSLUniform setters to support indexed access.
Populate array-based default GLSL variable mappings using iteration.

Populate array-based default GLSL variable mappings using iteration instead
of using a long hardcoded list.
Add PVRShaman semantics.

Add PVRShaman semantics. Add configurable instantiation of PFX semantic delegate
from PFX resource and PFX resource from POD resource. Rename implementations of
CC3GLProgramSemanticsDelegate to remove the word "Delegate" from their class names.
Map PVRShaman semantic names to declared CC3 semantics.

Map PVRShaman semantic names to declared CC3 semantics. Add CC3 semantic
delarations to cover PVRShaman reqmts. Change default shader uniforms to match.
Add content retrievals for PVRShaman semantics to cover ReflectionMask demo,
including custom uniform override.
Added CC3Assert macro for enhanced assertion support.

Added CC3Assert macro for enhanced assertion support. Replaced NSAssert calls
with calls to CC3Assert throughout the cocos3d code library.
Add content extraction for PVRShaman matrix semantics.

Add content extraction for PVRShaman matrix semantics. Rework environment matrix
tracking in CC3OpenGLESMatrices and subclasses. Un-inlined the larger CC3Matrix...
functions as they are now used in numerous places. Redefined GLSL matrix variable
names.
Add content extraction for remaining PVRShaman semantics.

Add content extraction for remaining PVRShaman semantics, and add support for
this throughout scene management.
Document PFX additions to CC3DemoMashUp.

Document PFX additions to CC3DemoMashUp. Add PFX loading methods to CC3Material.