TEST: Added another test function where we create first a Qball ODF and then sharpen it
TEST: Added another test function where we create first a Qball ODF and then sharpen it

JohnGriffiths/dipy,nilgoyyou/dipy,maurozucchelli/dipy,JohnGriffiths/dipy,demianw/dipy,matthieudumont/dipy,samuelstjean/dipy,FrancoisRheaultUS/dipy,maurozucchelli/dipy,beni55/dipy,Messaoud-Boudjada/dipy,sinkpoint/dipy,Messaoud-Boudjada/dipy,jyeatman/dipy,mdesco/dipy,rfdougherty/dipy,StongeEtienne/dipy,villalonreina/dipy,matthieudumont/dipy,beni55/dipy,demianw/dipy,sinkpoint/dipy,FrancoisRheaultUS/dipy,oesteban/dipy,oesteban/dipy,samuelstjean/dipy,rfdougherty/dipy,samuelstjean/dipy,StongeEtienne/dipy,villalonreina/dipy,nilgoyyou/dipy,mdesco/dipy,jyeatman/dipy,maurozucchelli/dipy