migrate to soomla-cocos2dx-core

implement common part
implement ios part
make Android C++ compilable
refactoring
refactoring
migrate to soomla-cocos2dx-core

update android
update android-submodule
update project to android-core
change NULL to nullptr
remove soomSec
migrate to soomla-cocos2dx-core
move common classes from solution to core
move common classes from solution to core
update ios submodule
make Android working
update android submodule
update ios submodule
add payload to `buy`
set up ios projects
optimize includes
update common and iOS documentation