Valgrind report:
```
14,960 (11,544 direct, 3,416 indirect) bytes in 37 blocks are definitely lost in loss record 20,483 of 20,540
at 0x4837DEF: operator new(unsigned long) (vg_replace_malloc.c:334)
by 0xC06963: rtengine::FramesData::FramesData(Glib::ustring const&, std::unique_ptr<rtengine::RawMetaDataLocation, std::default_delete<rtengine::RawMetaDataLocation> >, bool) (imagedata.cc:1121)
by 0xBD774F: rtengine::DFManager::addFileInfo(Glib::ustring const&, bool) (dfmanager.cc:380)
by 0xBD6E90: rtengine::DFManager::init(Glib::ustring) (dfmanager.cc:303)
by 0xC3EC5D: rtengine::init(rtengine::Settings const*, Glib::ustring, Glib::ustring, bool) [clone ._omp_fn.0] (init.cc:93)
by 0x897CABD: gomp_thread_start (team.c:120)
by 0x89B7A9C: start_thread (in /usr/lib/libpthread-2.28.so)
by 0x8ACCB22: clone (in /usr/lib/libc-2.28.so)
```
1. RT could crash in some circumstances with single frame image
2. UNICODE UserComment now done when already existing in raw file
3. When editing UserComment in the ExifPanel, the Value filed is now
filled with the current value
- CIECam now gets the shot's setting of the selected frame
- 'UserComment' metadata now correctly handled
- RT prepared to handle XTrans multiframe
- SensorType now set in the cache/data files
- Exif of all frames are displayed in the Editor's Exif tab (without
separator)
- isHDR and isPixelShift is added to the data files stored in cache
- In the Editor panel, the QuickInfo frame display the HDR and
PixelShift information, as well as the number of frame and bit-depth for
HDR image
- the number of frame is provided by dcraw. If not set, it is provided
by the Exif's main IFD count
- the PixelShift information (for Pentax as of now) is provided by
looking at the Exif informations
- the HDR information is provided by the Exif information of the first
frame for Pentax raw files, or by the bitspersample, sampleformat and
compression tags for other files
TODO: add icons to the thumbnails to tag HDR and PixelShift files.
