include size to SoundHeader
save size for writing
implement features for sounds compiling
implement SoundResource, update ResourceManager
update cmake file
Merge branch 'master' of https://github.com/taylor001/crown
Disable JSONParser copying
Fix wrong copy constructor
Add JSONElement, an helper class to parse JSON documents
Add JSONElement::has_key
Make resource compiler more C++-ish
Merge branch 'master' into dae-compiler

Conflicts:
	engine/resource/ResourceManager.cpp
	tools/cli/resource-compiler.cpp