Added GetResource prototypes to EveSpaceScene
Added GetResource prototypes to EveSpaceScene

- Added `GetResources` prototype to `EveSpaceScene` which collects a scene's resource objects into an array
- Added `GetChildResources` prototype to `EveSpaceScene` which collects a scene's childrens' resource objects into an array
cppctamber/ccpwgl,ccpgames/ccpwgl