Add missing regression data for sanity check

Correct eol handling in helper scripts.
Add new append.py script to concatenate sanity xml. Also script can be used to
normalize new xml files by running: 'append.py some.xml some.xml'
Added sanity data for calcHist() perf tests
Merge pull request #11 from Daniil-Osokin/sanityData4CalcHist

Added sanity data for calcHist() perf tests
Update reference data after equalizeHist rewrite
Updated sanity data for batchDistance tests

See OpenCV b870b246e106bedff4a7e9fd0cd45b9c1f394dd5
updating sanity check data due to test images change
Merge pull request #16 from apavlenko/warp_sanity_check

updating sanity check data due to test images change