Changes:
+ Add tags. Rename Exiftool `SequenceLength` tags to `SequenceLength1`
and `SequenceLength2`, to prevent a name clash.
+ Update docs and manpage.
Source: [Exiftool](https://exiftool.org)
The function checks if a string is in the beginning of another. This
is intended for use until the move to C++20 when
`std::basic_string<>::starts_with()` becomes available. Suggested in
https://github.com/Exiv2/exiv2/pull/1777 .
Separate identical definitions have been moved into a single copy.
Changes:
+ Add pretty printing for all tags
+ Add camera selector, to prevent incompatible models using tags
+ Update testing with new values
Source: Exiftool (https://exiftool.org/TagNames/Sony.html)
* Fix 582 Add support for FocusPosition in Sony RAW files
* Thanks to @boardhead sonyFpCrypt() works correctly. Removed debug code. Fixed typos.
* Update doc/templates/Makefile to process Sony2Fp
* Following review by @boardhead. Renamed sonyFpCrypt() as sonyTagDecipher().
* Fixed writing the tag thanks to @boardhead explaining encipher/decipher.
Sadly, ArrayCfg/crpyt does not know if he's encrypting/decrypting.
I've added a sniff in TiffEncoder::visitBinaryArrayEnd to avoid changing the API.
* Added URL to discussion concerning sonyTagCipher()
* make sonyTagCipher() a static function with no external visibility.
