Added an helper method to find declarations hierarchically.
Added an helper method to find declarations hierarchically.

ddobrev/CppSharp,nalkaro/CppSharp,zillemarco/CppSharp,xistoso/CppSharp,imazen/CppSharp,ktopouzi/CppSharp,ktopouzi/CppSharp,mono/CppSharp,inordertotest/CppSharp,ddobrev/CppSharp,u255436/CppSharp,genuinelucifer/CppSharp,txdv/CppSharp,zillemarco/CppSharp,Samana/CppSharp,mono/CppSharp,ktopouzi/CppSharp,xistoso/CppSharp,mydogisbox/CppSharp,mydogisbox/CppSharp,mono/CppSharp,mydogisbox/CppSharp,genuinelucifer/CppSharp,txdv/CppSharp,nalkaro/CppSharp,mono/CppSharp,zillemarco/CppSharp,mono/CppSharp,SonyaSa/CppSharp,genuinelucifer/CppSharp,mohtamohit/CppSharp,imazen/CppSharp,xistoso/CppSharp,nalkaro/CppSharp,u255436/CppSharp,inordertotest/CppSharp,inordertotest/CppSharp,Samana/CppSharp,KonajuGames/CppSharp,KonajuGames/CppSharp,ktopouzi/CppSharp,ddobrev/CppSharp,SonyaSa/CppSharp,SonyaSa/CppSharp,u255436/CppSharp,imazen/CppSharp,u255436/CppSharp,txdv/CppSharp,mohtamohit/CppSharp,imazen/CppSharp,mono/CppSharp,mohtamohit/CppSharp,mohtamohit/CppSharp,txdv/CppSharp,KonajuGames/CppSharp,mohtamohit/CppSharp,SonyaSa/CppSharp,inordertotest/CppSharp,txdv/CppSharp,genuinelucifer/CppSharp,mydogisbox/CppSharp,nalkaro/CppSharp,ktopouzi/CppSharp,Samana/CppSharp,KonajuGames/CppSharp,Samana/CppSharp,zillemarco/CppSharp,xistoso/CppSharp,genuinelucifer/CppSharp,nalkaro/CppSharp,inordertotest/CppSharp,ddobrev/CppSharp,Samana/CppSharp,u255436/CppSharp,ddobrev/CppSharp,zillemarco/CppSharp,SonyaSa/CppSharp,KonajuGames/CppSharp,mydogisbox/CppSharp,xistoso/CppSharp,imazen/CppSharp