Add more 'aliases' to the rootmap entries for the GenVector library

to work around CINT and autoloader deficiency with template default parameter.

Insure that MakeProject generate the dictionary for std::pair instances
explicitly used in STL collections.

Allow the seamless schema evolution from map<a,b> to vector<pair<a,b> >.


git-svn-id: http://root.cern.ch/svn/root/trunk@36707 27541ba8-7e3a-0410-8455-c3a389f83636