Refs #9095.  Started to implement algorith.

1. Add files;
2. Modify CMakeList;
3. Checkpointing work in progress
Refs #9095.  Completed EstimatePDDetectorResolution.

Including
1. Add unit test;
2. Add automatic estimation on delta(L) from detector size;
3. Remove algorithm call to SolidAngle;
Enabled to output delta(d)/d of each spectra. Refs #9095.
Cleaned the code. Refs #9095.
Merge branch 'feature/9095_estimate_resolution' into develop