To svg fix

Ok this is just a preview to discuss it with who has time.

The fixes are mostly about syntax of exported svg , adding missing properties and of course positioning everything in the right place, regardless if is in pathgroup or single , flipped or transformed.

The more important things found till now are :
Top left of image was ignored.
transformMatrix of elements was ignored.
fill rule was ignored.

Don't care about extra spaces now, just to see if some change is higly incorrect