Sometimes elements in overrides.xml contain extra spaces due to typos,
which are quite difficult to track down. The XmlSpecReader can now
cope with that.
The registry reuses the "gles2" apiname for both OpenGL ES 2.0 and 3.0.
The generator will now use the apiversion attribute to distinguish
between the two APIs.
A Settings object is now passed directly as a parameter, in order to
support different configurations in the same process. The XmlSpecReader
can now distinguish between, and support both, pre-GL4.4 and post-GL4.4
specs.
Instead of hardcoding a list of extensions, extensions are now read
directly from the signatures.xml file. Acronyms for new texture
formats are now listed.
* EnumProcessor.cs:
* GL2/Generator.cs:
* FuncProcessor.cs: Fixed handling of overrides file: we now add
signatures as requested and reset the stream after we are done
reading the file.