Add static Vulkan loader.

Initial Vulkan support for Windows.
Initial Vulkan support for macOS.

scene/2d/sprite.cpp

@@ -363,7 +363,9 @@ bool Sprite::is_pixel_opaque(const Point2 &p_point) const {
 	if (vflip)
 		q.y = 1.0f - q.y;
 	q = q * src_rect.size + src_rect.position;
+#ifndef _MSC_VER
 #warning this need to be obtained from CanvasItem new repeat mode (but it needs to guess it from hierarchy, need to add a function for that)
+#endif
 	bool is_repeat = false;
 	bool is_mirrored_repeat = false;
 	if (is_repeat) {