git: add 'gtl' alias to list tags matching a pattern (#7629)

1. List the tags that match the pattern(s) passed through the argument.
2. Displays the first line of the annotation message along with the tag, or the line of the first commit message if the tag is not annotated.
3. Sorts and displays tags in descending order.

plugins/git/git.plugin.zsh

@@ -251,6 +251,7 @@ alias gsu='git submodule update'
 
 alias gts='git tag -s'
 alias gtv='git tag | sort -V'
+alias gtl='gtl(){ git tag --sort=-v:refname -n -l ${1}* }; noglob gtl'
 
 alias gunignore='git update-index --no-assume-unchanged'
 alias gunwip='git log -n 1 | grep -q -c "\-\-wip\-\-" && git reset HEAD~1'