Porting to eo2
update example
Fix finding FFI_INCLUDE_DIR in cmake
DB update
comment out Espion target from building
Eolian: first integration.

CMake + inits
Replacement of eo_class_mro_get.

Now the efl branch is no more needed! YEAHHH!!!
It uses Eolian to retrieve the inheritance.
Fix warnings and remove commented code.
return GUI_TYPE_IMAGE
add parsing of EGUI_GENERATE flags
reorder code in layout
make possible to add external callback
TODO - resiurce update
make callbacks from Res be choosen from seq
add alias to callbacks
add EvasSmartCb into Res
add reading and generation resources Evas Callback
add db_op_desc_nth_par_type_name_get() func
make Evas_Smart_Cb choosable in item_add funcs
start adding Resource Manager window