updated model
updated model

simplified the pointer representation,
fixed some invalid definitions.

maverickwoo/bap-plugins,rvantonder/bap-plugins,rvantonder/bap-plugins,maverickwoo/bap-plugins,chubbymaggie/bap-plugins,maverickwoo/bap-plugins,rvantonder/bap-plugins,BinaryAnalysisPlatform/bap-plugins,maverickwoo/bap-plugins,rvantonder/bap-plugins,BinaryAnalysisPlatform/bap-plugins,chubbymaggie/bap-plugins,chubbymaggie/bap-plugins,BinaryAnalysisPlatform/bap-plugins,BinaryAnalysisPlatform/bap-plugins,chubbymaggie/bap-plugins