Emscripten support.

Doesn't work due to i64 vs i32 type mismatch in glGetIntegerv, which
seems like some general compatibility bullshit, not something related
to CMake.

profiler/wasm/index.html

@@ -161,6 +161,6 @@
       addEventListener('resize', resizeHandler);
       resizeHandler();
     </script>
-    <script async type="text/javascript" src="Tracy-release.js"></script>
+    <script async type="text/javascript" src="tracy-profiler.js"></script>
   </body>
 </html>