-Demos:

*added ImGUI styles
 *added new assets (fonts, shaders)
 *added cimgui.dll
 *added imports for bindbc-sdl (for WASM)
 *added simple demo
 *added demo launcher
 *added snake demo
 *impoved demo utils
 *added cimgui.bc library for WASM
-improved wasm build script
-small change in vector

demos/external/wasm_imports/bindbc/sdl/bind/sdlvulkan.d

@@ -0,0 +1,45 @@
+
+//          Copyright Michael D. Parker 2018.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+module bindbc.sdl.bind.sdlvulkan;
+
+import bindbc.sdl.config;
+import bindbc.sdl.bind.sdlstdinc : SDL_bool;
+import bindbc.sdl.bind.sdlvideo : SDL_Window;
+
+version(BindSDL_Static) {
+    extern(C) @nogc nothrow {
+        static if(sdlSupport >= SDLSupport.sdl206) {
+            SDL_bool SDL_Vulkan_CreateSurface(SDL_Window*,void*,void*);
+            void SDL_Vulkan_GetDrawableSize(SDL_Window*,int*,int*);
+            SDL_bool SDL_Vulkan_GetInstanceExtensions(SDL_Window*,uint*,const(char)**);
+            void* SDL_Vulkan_GetVkGetInstanceProcAddr();
+            int SDL_Vulkan_LoadLibrary(const(char)*);
+            void SDL_Vulkan_UnloadLibrary();
+        }
+    }
+}
+else {
+    static if(sdlSupport >= SDLSupport.sdl206) {
+        extern(C) @nogc nothrow {
+            alias pSDL_Vulkan_CreateSurface = SDL_bool function(SDL_Window*,void*,void*);
+            alias pSDL_Vulkan_GetDrawableSize = void function(SDL_Window*,int*,int*);
+            alias pSDL_Vulkan_GetInstanceExtensions = SDL_bool function(SDL_Window*,uint*,const(char)**);
+            alias pSDL_Vulkan_GetVkGetInstanceProcAddr = void* function();
+            alias pSDL_Vulkan_LoadLibrary = int function(const(char)*);
+            alias pSDL_Vulkan_UnloadLibrary = void function();
+        }
+
+        __gshared {
+            pSDL_Vulkan_CreateSurface SDL_Vulkan_CreateSurface;
+            pSDL_Vulkan_GetDrawableSize SDL_Vulkan_GetDrawableSize;
+            pSDL_Vulkan_GetInstanceExtensions SDL_Vulkan_GetInstanceExtensions;
+            pSDL_Vulkan_GetVkGetInstanceProcAddr SDL_Vulkan_GetVkGetInstanceProcAddr;
+            pSDL_Vulkan_LoadLibrary SDL_Vulkan_LoadLibrary;
+            pSDL_Vulkan_UnloadLibrary SDL_Vulkan_UnloadLibrary;
+        }
+    }
+}