* Consider packet block incomplete if becomes 10 frames old
* Ignore packet blocks from old (finished) frames

* Caller does not need to care if object is effectively moved-from
  inside the function

* Allocate per-thread buffer for raw data
  in Jungfrau GainPedCorr ImgSrc

* Only one processing thread, move packet processing
  to Camera readRecvPackets and assemblePackets
* Remove Recv helper class in Jungfrau

* Perform pedestal measurement seq in a Python thread
* Improve synchronisation around ReadHelper

* Implement Single & Dual modes for raw & processed
  image injection into Lima, respectively
* Support max_memory control similar to CtBuffer

* 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

* Add 16 & 32 bit gain & pedestal correction with calibration maps
  export using GainPedImgProc task
* Move double buffer read code to ReadHelper

* Do not need to include receiver destination buffer offset

* Jungfrau switches to Stopped instead of Idle if stopped