Add vendor:wgpu to examples/all

examples/all/all_vendor.odin

@@ -20,6 +20,7 @@ import MIX        "vendor:sdl2/mixer"
 import TTF        "vendor:sdl2/ttf"
 
 import vk         "vendor:vulkan"
+import wgpu       "vendor:wgpu"
 
 // NOTE(bill): only one can be checked at a time
 import lua_5_4    "vendor:lua/5.4"
@@ -50,6 +51,7 @@ _ :: MIX
 _ :: TTF
 
 _ :: vk
+_ :: wgpu
 
 _ :: lua_5_4