remove IO factory
NrrdDiffusionImageReader inherit from mitk::AbstractReader
rm template -> DiffusionWeightedImages are short (upcoming mitk multi component images will solve the datatype problems)
remove reader from diffusioncoreObjectFactory
activate NrrdDiffusionImageReader in diffusion ModuleActivator
fixed typo
(should be discussed later)
Merge remote-tracking branch 'origin/personal/cordes/dwireader' into bug-18353-port-diffusion-readers-writers
Ported tensor image writer
Ported qball image reader writer
Centralized Diffusion mime types.

Also moved fiberbundlex reader writer to diffusionIO again
Ported connectomics reader writer
Merge branch 'bug-18353-port-diffusion-readers-writers'