describe: teach --match to handle branches and remotes

describe: teach --match to handle branches and remotes

When `git describe` uses `--match`, it matches only tags, basically
ignoring the `--all` argument even when it is specified.

Fix it by also matching branch name and $remote_name/$remote_branch_name,
for remote-tracking references, with the specified patterns. Update
documentation accordingly and add tests.

Signed-off-by: Max Kirillov <redacted>
Signed-off-by: Junio C Hamano <redacted>