Backup more config file types

[ferventcoder]

Possibly conf and .ini - need folks to chime in with others.

[gep13]

Yaml, yml?

[gep13]

json?

[qzo]

In addition to that - what about allowing package maintainers to specify the files (for example reg. exprs. in a file saved in the tools directory)?

[ferventcoder]

@qzo I like that as well. We want some for existing known types and then also the ability for someone to add an ini type file for particular ones

[pauby]

Slack conversation with @gep13:

Chocolatey CLI attempts to do "magic" during an upgrade to backup some .config file, perform the upgrade, and then replace the .config file again in the new lib folder. This seems to be about extending that functionality for other file types.