add support for using non mesh objects as point sources (mainly for curves but meta's and surfaces also work)
remove face/edge point sources. not really that useful in most cases and clogged up UI.

- added options to fracture into a new group and to use the next layer then the active object.
- noise option wasnt working right, was always adding a lot of noise.

options
- recursive fracture
- source limit
- source point noise

still work in progress