new modules for libunistring metadata

[Bruno Haible]

The next version of GNU libunistring will define more metadata.
Suggested by Roger Crew <wrog@wrog.net> in
<https://lists.gnu.org/archive/html/bug-libunistring/2023-08/msg00000.html>.

If this metadata is maintained in libunistring, it has to be updated each
time we upgrade to a new Unicode version, in the future.

It's better if this metadata is generated from gen-uni-tables.c. This
eliminates a manual step. These patches do it.


2024-02-20  Bruno Haible  <bruno@clisp.org>

        unimetadata/u-version: Add tests.
        * tests/unimetadata/test-u-version.c: New file.
        * modules/unimetadata/u-version-tests: New file.

        unimetadata/u-version: New module.
        * lib/gen-uni-tables.c (output_version): New function.
        (main): Invoke it.
        * lib/unimetadata/u-version.c: New generated file.
        * modules/unimetadata/u-version: New file.

        unimetadata/base: New module.
        * lib/unimetadata.in.h: New file.
        * m4/unimetadata_h.m4: New file.
        * modules/unimetadata/base: New file.

0001-unimetadata-base-New-module.patch
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0002-unimetadata-u-version-New-module.patch
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0003-unimetadata-u-version-Add-tests.patch
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