Jungfrau: add ImgSrc GainPedCorr, injecting corrected images to Lima

* Add Reconstruction helper for both Eiger & Jungfrau image corrections
* Allow an Acq BufferCtrlObj, in addition to Lima one, for raw images
* Support both 16 & 32 bit GainPed maps
* Disable GainPedImgProc if necessary
3 jobs for jungfrau in 7 minutes and 1 second (queued for 3 seconds)