moglcore: Improve autocode.m code generator for robustness.

To handle OpenGL up to 4.5 and OSX 10.9.x parsing better.
moglcore: Update included GLEW to version 1.11.0

As usual "MK" PTB specific patches applied for OpenGL-ES
basic support, and the fact that we include the source and
header files into our moglcore build, instead of linking
statically or dynamically against an external libglew.[a/so/dylib/dll]

This is supposed to update GLEW to OpenGL-4.5 + equivalent/additional
extensions for pre-OpenGL-4.5.

However, it seems as while extension support seems to be up to date,
the core profile support for everything beyond OpenGL 3.0 is somewhat
incomplete: OpenGL 3.0 is covered about 60-80%, OpenGL 3.1+ becomes
more sparse. From OpenGL 4.1 on, all core profile entry points seem
to be missing, compared to Khronos official glext.h file!

We will need to restrict ourselves to roughly OpenGL 3.0 core profile
plus extensions which provide OpenGL 3.1+ functionality, otherwise
our auto-generated gl_auto.c interface code won't build against current
GLEW.
moglcore: Add updated glext.h, derived glext_edit.h and glu_edit.h

The glu.h coming from OSX is not parseable by our code generator
anymore, as Apple decided to sprinke DEPRECATED macros all over
the place to declare their intention to make use of GLU in the
future as painful as possible. Therefore we include our own
untainted copy of it, as permitted by its license.

glext.h is up to date as of OpenGL version 4.5 and extensions.
glext_edit.h removes some useless defines etc. to make it better
parseable.

This glext_edit.h has functions which are not supportable by
current GLEW 1.11 at build time, so this is just a baseline
for further stripping off of functions.
moglcore: Remove OpenGL 3.1+ core and SGI extensions from glext_edit.h

Delete SGI extensions fro prehistoric times.
Delete entry points for OpenGL 3.1/3.2/3.3/4.0/4.1/4.2/4.3/4.4/4.5,
but not the constant defines.

This should avoid generation of code and glXXX wrappers for functions
which are not available in our (usually) < 3.1 contexts, and which
are only incompletely supported by current GLEW 1.11.0.

All useful and supported functionality should get drawn in again
via the OpenGL extensions, which provide much/most(all?) OpenGL
3.1+ core functionality.
moglcore/autocode.m: Only add GL functions supported by current GLEW.

Cross-Check each candidate entry point, if it is supported/defined by
glew.h from current GLEW version, so we avoid generating uncompilable
C code in gl_auto.c due to missing GLEW support.

Exceptions from this rule are gluXXX and glutXXX functions.
Revert "moglcore: Remove OpenGL 3.1+ core and SGI extensions from glext_edit.h"

This reverts commit 6e367d7b234e0eb326a7adae6dcdd9d94a18b098.

The current glext.h aka glext_edit.h file does no longer define
function entry points from GL extensions which are also part of
an OpenGL core version.

This means we can't delete the core GL version definitions of those
functions without also losing access to functions of the same name
under some GL extensions.

Soo, revert this change, throw everything at our parser and let
the updated parser reject all functions which are not also defined
as supported in GLEW's glew.h file.

Oh the fun...
moglcore: Update codegen with new GL data types.

Add some new GL data types to cparse.m and mcinfo.m,
so proper interface code is generated for those data types:

GLint64EXT, GLuint64EXT, GLintptr, GLuintptr, GLintptrdiff,
GLcharARB
moglcore: Manually implement glTransformFeedbackVaryings()

... and also its EXT and NV variants and associated wrappers.
moglcore/autono.txt: Remove some blacklisted functions.

They are now supported by GLEW 1.11.0, so use them.
moglcore: Add new auto-generated gl_auto.c, and regeneration log.

This should be the first useable new C-code for the "new"
moglcore.
moglcore: Add 1510 new M-File wrappers.
moglcore: Update oglconst.mat with constant defines up to OpenGL 4.5

Result of oglconst.m run on current headers and headers/glext.h
moglcore/autono.txt: Also blacklist glCompileShaderIncludeARB

Not only glCompileShaderInclude. Also delete corresponding
M-Wrapperfile.
mogl: Make glGetTransformFeedbackVarying et al. functional.
moglcore mex for Windows, OSX and 32-Bit Linux rebuilt.

This updates moglcore roughly to OpenGL 4.5 or its
equivalent extensions.

At least the "transform feedback" extension is lightly
tested and shown to work.

- Rebuilt for 64-Bit Matlab and Octave on OSX.
- Rebuilt for 64-Bit Matlab on Windows.
- Rebuilt for 32-Bit Octave on Linux.

-> Rebuild for 64-Bit Linux pending.
Merge branch 'moglnext'