Add filter rendering improvements by caching

This branch render filters in one tile, anyway the tile size set.

Also not sure about performance. By the moment trying with this file with bad results: https://inkscape.org/~joaclint/%E2%98%85celebration

Seems too much better performance and less artifacts at higger zooms on blurs in this file as example: https://inkscape.org/~joaclint/%E2%98%85celebration

Finaly I need to add a option if the element is not tile render splited leave intact with default. But not sure if this can be done.

Full change the way I start. I improve the rendering cache of filters. So get the same speed if the effect is splitted by tiles or not.