Generos

Agrega modulo generos
Revert "Modulo Generos"

This reverts commit b72ca623bba9ed9dfc9dc0cf0b70d2705856bb04.

Conflicts:
	sfotipy/genders/admin.py
	sfotipy/genders/models.py
	sfotipy/genders/tests.py
	sfotipy/genders/views.py