partially done work on total source tree rework, separation of engine context and game context, generalization of renderer for different backends as well as web platform target

.gitignore

@@ -5,6 +5,10 @@
 !Makefile
 
 **/*.exe
+**/*.html
+**/*.js
+**/*.wasm
+**/*.wasm.map
 **/*.so
 **/*.dll
 **/*.7z
@@ -16,6 +20,7 @@
 .idea/
 .cache/
 .build/
+.build-web/
 build/
 out/