egl: Add egl.def for win32 build.

Without the .def file, function names are decorated and cannot be
queried by GetProcAddress easily.

src/egl/main/SConscript

@@ -42,7 +42,7 @@ if env['platform'] != 'winddk':
 
 	egl = env.SharedLibrary(
 		target = 'libEGL',
-		source = egl_sources,
+		source = egl_sources + ['egl.def'],
 	)
 
 	env.InstallSharedLibrary(egl, version=(1, 4, 0))

src/egl/main/egl.def

@@ -0,0 +1,35 @@
+EXPORTS
+   eglBindAPI
+   eglBindTexImage
+   eglChooseConfig
+   eglCopyBuffers
+   eglCreateContext
+   eglCreatePbufferFromClientBuffer
+   eglCreatePbufferSurface
+   eglCreatePixmapSurface
+   eglCreateWindowSurface
+   eglDestroyContext
+   eglDestroySurface
+   eglGetConfigAttrib
+   eglGetConfigs
+   eglGetCurrentContext
+   eglGetCurrentDisplay
+   eglGetCurrentSurface
+   eglGetDisplay
+   eglGetError
+   eglGetProcAddress
+   eglInitialize
+   eglMakeCurrent
+   eglQueryAPI
+   eglQueryContext
+   eglQueryString
+   eglQuerySurface
+   eglReleaseTexImage
+   eglReleaseThread
+   eglSurfaceAttrib
+   eglSwapBuffers
+   eglSwapInterval
+   eglTerminate
+   eglWaitClient
+   eglWaitGL
+   eglWaitNative