Enable GL hooks via EGL on windows, as well as via WGL

* Without this, injecting into a GLES application on windows might not work as
  the hooks won't be enabled when a context create is seen.

renderdoc/driver/gl/egl_hooks.cpp

@@ -193,6 +193,7 @@ HOOK_EXPORT EGLContext EGLAPIENTRY eglCreateContext_renderdoc_hooked(EGLDisplay
 
   eglhook.configs[ret] = config;
 
+  EnableGLHooks();
   eglhook.driver.SetDriverType(RDCDriver::OpenGLES);
   {
     SCOPED_LOCK(glLock);

renderdoc/driver/gl/gl_dispatch_table.h

@@ -970,7 +970,9 @@ void SetDriverForHooks(WrappedOpenGL *driver);
 // intialisation. This can have false positives if the program creates a context late, but it's the
 // best we can do.
 #if ENABLED(RDOC_WIN32)
-void EnableHooks();
+void EnableGLHooks();
+#else
+#define EnableGLHooks() (void)0
 #endif
 
 // this function looks up our list of hook entry points and returns our hook entry point instead of

renderdoc/driver/gl/gl_hooks.cpp

@@ -105,7 +105,7 @@ void SetDriverForHooks(WrappedOpenGL *driver)
 }
 
 #if ENABLED(RDOC_WIN32)
-void EnableHooks()
+void EnableGLHooks()
 {
   glhook.enabled = true;
 }

renderdoc/driver/gl/wgl_hooks.cpp

@@ -55,7 +55,7 @@ public:
 void WGLHook::PopulateFromContext(HDC dc, HGLRC rc)
 {
   SetDriverForHooks(&driver);
-  EnableHooks();
+  EnableGLHooks();
 
   // called from wglCreate*Context*, to populate GL functions as soon as possible by making a new
   // context current and fetching our function pointers