Expose JSON <-> Caddyfile conversion via command line flags (#2374)
Expose JSON <-> Caddyfile conversion via command line flags (#2374)

* Expose JSON <-> Caddyfile conversion via command line flags stdin / stdout

*  cli caddyfile-to-json and json-to-caddyfile

joshix/caddy,joshix/caddy,joshix/caddy