Test Exif Make/Model
Fix test macros
Remove Coolpix 5700 from testsuite: the file wasn't what it was supposed to be.
Implement 'Make' exif metadata for CRW.
Fix Exif in MRW: use the exifOffset in IfdEntry::loadData().
Add MakerNote support and tests.
Merge branch 'test-exif'

Test Exif
Fix MRW Exif support.
Fix CRW Exif-like metadata
Update README and NEWS
Update NEWS
Add an id to MakerNote
Add makerNoteId() test in testsuite
API: or_rawdata_get_minmax() replaced by or_rawdata_get_levels()

Also propagate down to the internals.
For MRW, use the provided matrices for the levels.
Fix main CFA detect for Blackmagic CinemaDNG

Added Blackmagic Pocket Cinema camera ID
ordiag will display UniqueCameraModel
Added cinemadng to testsuite.
Add generic DNG typeId support. For BlackMagic CinemaDNG files.
Remove or_debug. It wasn't needed anywhere.
Added Debug::log()
Add logging macros, for the lazy.
Update NEWS
De-recurcify lib
Added Canon 7DMkII and G7X