Work on openapi completion

Currently still a work in progress.

the bin/.bin/openapi file will be a bash script for interfacing with an
openapi file. Currently it does things like listing requests, servers,
and viewing a request in json format.

The function added to fzf.zsh adds a zsh widget so that I can press a
keybinding (in my case ^o) to complete the command. It uses the above
script and fzf to make the selection. Currently supports http / https /
curl

The widget looks for an environment variable called OPENAPI which should
point to the openapi file. This is set in zshrc if a project is set.

shells/zsh/STOW/.zshrc

@@ -72,6 +72,7 @@ else
 		if [[ ! "$(ps -ocommand -p $PPID | grep -v 'COMMAND' | cut -d' ' -f1 )" == "$script" ]]; then
 			if [ -f "$current/index.yaml" ]; then
 				export repdef="$(realpath "$current/$(yq -r .repdef "$current/index.yaml")")"
+				export OPENAPI="$(realpath "$current/$(yq -r .openapi "$current/index.yaml")")"
 			fi
 			mkdir "$current/shell-logs" 2> /dev/null
 			/usr/bin/script -f "$current/shell-logs/$(date +"%d-%b-%y_%H-%M-%S")_shell.log"