Split examples/all into different files

examples/all/all_vendor.odin

@@ -0,0 +1,13 @@
+//+build windows
+package all
+
+import glfw   "vendor:glfw"
+import gl     "vendor:OpenGL"
+import rl     "vendor:raylib"
+import PM     "vendor:portmidi"
+import SDL    "vendor:sdl2"
+import IMG    "vendor:sdl2/image"
+import SDLNet "vendor:sdl2/net"
+import MIX    "vendor:sdl2/mixer"
+import TTF    "vendor:sdl2/ttf"
+import vk     "vendor:vulkan"