hierarchic: new Approximation.get_poly_space()
hierarchic: new Approximation.get_poly_space()

- update .get_base()

vlukes/sfepy,lokik/sfepy,sfepy/sfepy,BubuLK/sfepy,lokik/sfepy,lokik/sfepy,RexFuzzle/sfepy,vlukes/sfepy,rc/sfepy,rc/sfepy,vlukes/sfepy,RexFuzzle/sfepy,BubuLK/sfepy,sfepy/sfepy,sfepy/sfepy,lokik/sfepy,RexFuzzle/sfepy,BubuLK/sfepy,rc/sfepy,RexFuzzle/sfepy