Merge pull request #4 from grahamsellers/master

WGL + DrawIndirect fixes
+ Fix to loki complaining about function pointers
- Ignore certain entry points during replay.
Merge branch 'master' of https://github.com/vMcJohn/vogl
Fix to spam regarding wglSwapInterval
Fixed errors for functions that were whitelisted but didn't actually do anything.
More printf cleanup.
Merge branch 'master' of https://github.com/vMcJohn/vogl
Implement WGL versions of various utility functions.

Provide typedefs for vogl_gl_context, vogl_gl_drawable and vogl_gl_display in vogl_gl_utils.h.
Provide implementations of vogl_has_active_context, vogl_get_current_context, vogl_get_current_display, vogl_get_current_drawable and vogl_make_current and vogl_destroy_context for WGL.

With this, texture capture on Windows appears to be working.