Updated the code for the "inheritance helper" functions and classes
to be in conformance with the new wrapper architecture.
Member variable "parents" of efl::eo::eo_class struct was split in two
member variables, "ancestors" and "parents", the former containing all
Eo class ancestors and the later only the direct bases.
Changed all required files accordingly.
Check to avoid using biding string when the parameter is @out now matches
any variation of "char".
Add default constructor to efl::eo::concrete in order to allow it to be
NULL initialized in the "inheritance helper" classes.
Removed conflicting parent_set member function in the efl::eo::inherit
class.
Removed the "inheritance_extension_function" generator since it is no
longer used.
Felipe Magno de Almeida
Vincent Torri
Vitor Sousa
Larry Jr