Exiv2

1/ Update libexiv2 to 0.27.7 in binary wheels.

---------------------------------

* Exiv2 utility
- [tools] exiv2 utility: Fixed handling of multiple rename options
-r, -t, -T

* Exiv2 library
- 0000508: [exif] Fixed mapping of CRW rotation info to Exif orientation.
(Reported and analysed by Marco Piovanelli)
- 0000507: [exif] Fixed RAF read-support for systems without mmap. (Reported
by Udi Fuchs)
- [exif] Added tag names for a few tags used by Windows Vista and
ACDSee. (Gilles Caulier)
- [exif] Updated Nikon lens info to v2.20 of Robert Rottmerhusen's
lens database.
- [build environment] Switched to libtool's -version-info versioning
system.
- [build environment] By default, do not use the -g compiler option.
- [build environment] Added --disable-printucs2 configuration option
to disable Windows tag character conversion using libiconv.
- [build environment] Changes to make Exiv2 cross-compile smoothly
for win32 (Udi Fuchs)
- [build environment] Removed deprecated exiv2-config script and
some obsolescent autoconf macros pointed out by Udi Fuchs.
- [miscellaneous] Changed AnyError to inherit from std::exception;
changed the signature of AnyError::what(). (Suggested by Marco
Piovanelli)
- [miscellaneous] Fixed version check macro to actually check the
runtime version and not the compile-time version. Added version()
and versionNumber() functions.
- [miscellaneous] Updated German translation. (Oliver Dörr)
- [miscellaneous] Changed name of installed translation files to
lower case exiv2.mo. (Highlighted by Angelo Naselli)

1/ Added enums for XmpStruct and XmpArrayType
2/ Added method for copy-free access to XmpTextValue raw data.

1/ Fix occasional segfault with Image.io() of in-memory image data.

1/ Add data() method to access Exiv2::StringValueBase raw bytes.
2/ Update libexiv2 to 0.27.6 in binary wheels.
3/ Enable video support in binary wheels.

---------------------------------

* Exiv2 utility
- 0000504: [tools] exiv2 utility: allow use of -M and -m options with extract
and insert actions.

* Exiv2 library
- 0000503: [metadata] Tiff generated by Photoshop crashes exiv2
(digikam bug 139658).
- 0000502: [iptc] New TIFF parser: Decode IPTC from Exif.Image.IPTCNAA.
(Reported by Walter Hangartner)
- 0000501: [iptc] IPTC field parsing is still too strict: shouldn't fail if
the type is not as expected. (Reported by Elsa Nordh)
- 0000497: [tools] exiv2 tool doesn't respect unix file rights. (Reported and
analysed by fabien)
- 0000491: [miscellaneous] Probe exiv2 for the extensions it supports.
(Suggested by Will Stokes)
- 0000461: [miscellaneous] Add i18n support. Requires gettext.
(Gilles Caulier)
The currently available translations are still work in progress:
Finnish by Mikael Lammentausta
French by Gilles Caulier (ported from libexif) and Olivier Tilloy
German by Gilles Caulier (ported from libexif) and Oliver Dörr
Russian by Alexandre Prokoudine
Polish, Spanish by Gilles Caulier, ported from libexif
- 0000460: [exif] Exiv2 should support to decode/encode Windows tags
Exif.Image.0x9c9b-0x9c9f. Requires libiconv.
(Suggested by Jose Oliver)
- 0000452: [exif] Non-intrusive writing does not update IFD.
- [exif] Updated Nikon lens info to v2.15 of Robert Rottmerhusen's
lens database.
- [exif] Added read-support for Fujifilm RAF images.
- [exif] Image class hierarchy refactored: Image now has containers
and provides default implementations for most methods. Calling
an unsupported method of any Image subclass now results in an
exception. Added a method to access the MIME type of an image.

* MSVC related
- [exivsimple] Added get and set thumbnail functions.
(Christian Kuster)