sysutils/czkawka: split CLI into subpackage

[jbeich]

Summary

According to Repology distros either don't split, split GUI into a separate package or split both CLI and GUI without main package. Due to missing USE_*.<subpkg> helper and for POLA sake I've moved out CLI to help headless users. Turning main subpackage into meta-package to pull both cli and (in future) gui subpackages may be of dubious benefit.

Test Plan

$ poudriere testport -j 132amd64 sysutils/czkawka
[...]
===========================================================================
=>> Checking shared library dependencies
 0x0000000000000001 NEEDED               Shared library: [libc.so.7]
 0x0000000000000001 NEEDED               Shared library: [libgcc_s.so.1]
 0x0000000000000001 NEEDED               Shared library: [libgdk_pixbuf-2.0.so.0]
 0x0000000000000001 NEEDED               Shared library: [libgio-2.0.so.0]
 0x0000000000000001 NEEDED               Shared library: [libglib-2.0.so.0]
 0x0000000000000001 NEEDED               Shared library: [libgobject-2.0.so.0]
 0x0000000000000001 NEEDED               Shared library: [libgtk-4.so.1]
 0x0000000000000001 NEEDED               Shared library: [libm.so.5]
 0x0000000000000001 NEEDED               Shared library: [libthr.so.3]

$ poudriere testport -j 132i386 sysutils/czkawka~cli
[...]
===========================================================================
=>> Checking shared library dependencies
 0x00000001 NEEDED               Shared library: [libc.so.7]
 0x00000001 NEEDED               Shared library: [libgcc_s.so.1]
 0x00000001 NEEDED               Shared library: [libm.so.5]
 0x00000001 NEEDED               Shared library: [libthr.so.3]

[jbeich]

• Correct version in pkg-message upgrade note