emodel_eio: Partially implemented the use of Eina_Value_Struct_Desc schema instead of eina_value_array. To be continued.
emodel_eio test: Fixed property name for eio_file_move and added eina_value_flush() for Eina_Value receiver from emodel_eio.
emodel_eio: Now we're using Eina_Value_Struct_Desc for properties.

Successfully tested against:
efl: src/tests/emodel_suite
elementary: src/examples/mvc_form_01, src/examples/mvc_form_01 , src/examples/fileviewlist, src/examples/filemvc