Added support for package detection for CRUX linux

[mhoush]

Summary

This PR adds support for detection of installed packages on a CRUX linux systems.

Related issue (required for new logos for new distros)

No related issue, not a new logo.

Changes

• doc/json_schema.json: added crux entries to packagesFormat and disabled enum
• src/detection/packages/packages.h: added crux to FFPackagesResult struct
• src/detection/packages/packages_linux.c: added parsing of the CRUX package database
• src/modules/packages/option.h: added CRUX FF_PACKAGES_FLAG_CRUX_BIT
• src/modules/packages/packages.c: added CRUX FF_PRINT_PACKAGE, FF_ARG, FF_TEST_PACKAGE_NAME, FF_APPEND_PACKAGE_COUNT, and FF_FORMAT_ARG_LIST entries

Screenshots

No visual change, just adds CRUX package output, for example: Packages: 937 (crux)

Checklist

• I have tested my changes locally.

[mhoush]

This is the first time I've looked at the fastfetch codebase so if I've done this incorrectly or missed something please let me know. Thanks!

[TimB87]

fwiw, I tested this patch and it works for me as well