Made some minor build-related updates. Notably, enabled "silent" make
rules; this makes the output cleaner when building from source.
+ Non UTF-8 locales are now detected correctly.
+
Some Windows-specific updates:
Fixed a bug where duplicate backslashes could be generated in
link targets when extracting symbolic links and junctions.
VSS support is no longer marked "experimental".
+ Added missing license file for libdivsufsort-lite.
+
Version 1.9.0:
Added experimental support for Windows VSS (Volume Shadow Copy Service).
The new '--snapshot' argument to 'wimcapture' makes wimlib automatically