stable-3.6: feat: add glob pattern support for --setopt repo prefix

[sshedi]

Add support for glob patterns in the repo-prefix part of --setopt, allowing a single option to target multiple repos at once.

skip filelists for every repo

tdnf --setopt=*.skip_md_filelists=1 makecache

skip filelists only for repos whose ID starts with "photon"

tdnf --setopt=photon*.skip_md_filelists=1 makecache

disable gpgcheck for all repos (e.g. during testing)

tdnf --setopt=*.gpgcheck=0 install pkg

combine with --repofrompath: glob applies to the dynamic repo too

tdnf --repofrompath=mrepo,/path/to/repo
--repo=mrepo
--setopt=*.skip_md_filelists=1
makecache

Existing syntax is unchanged:
--setopt=key=val global conf-level setting (no repo effect)
--setopt=repoid.key=val single named repo (highest precedence)

Implementation:

• Move TDNFIsGlob() from client/utils.c to common/utils.c so it is available to all libraries including the CLI tools library.
• parseargs.c: use TDNFIsGlob() to allow glob characters (?[) in the prefix part of --setopt=prefix.key=val, bypassing TDNFStrIsValidRepoName; the glob is stored in cn_repoopts under its literal name (e.g. ""), alongside ordinary per-repo entries.
• repolist.c (TDNFLoadRepoData): apply setopts in two passes. Pass 1 applies all glob-pattern entries via fnmatch(3); the @cmdline repo is skipped because its gpgcheck state is managed separately. Pass 2 applies exact repo-id entries, which always take precedence. Array-valued keys (baseurl, gpgkey) set by a glob are cleared before the exact-match apply so the exact entry replaces rather than appends.

Add tests covering glob setopt for skip_md_filelists and skip_md_other on --repofrompath repos, and per-repo setopt on file-based repos.

This is a port of commit b4309c0 from dev branch.

Original PR: #594