read-var subcommand renamed var, new file subcommand to handle all reading, putting and deleting from json, yaml and toml files

[zakstucke]

• Auto update schema directive in config file if not equal to the current schema directive
• Custom template matchers support, multiple too
• Windows fixes
• Windows fix plus trying windows 2019 server in action for speed
• 2019 did nothing for speed, reverting to latest
• read-var subcommand renamed var, new file subcommand to handle all reading, putting and deleting from json, yaml and toml files