Write a migration guide for going from v0.X to v1.0

[Badgerati]

Since v1.0 is going to contain vast changes to syntax, it'll be worth writing a Migration Guide for people going from Pode v0.X to v1.0.

This guide should contain:

• A function map, from old syntax to the new PowerShell syntax.
• Information on migrating from a pode.json to the new server.psd1 settings file.

[jeremymcgee73]

Just a thought, would a script that renames the functions to the new syntax be useful?

[Badgerati]

@jeremymcgee73 I like the idea, a script could work for some of the simpler functions (header, cookie, flash, etc). For functions like logger and auth these could be a lot more complicated 🤔

A script would give a good starting point though.

[Badgerati]

Going through the examples and thinking about this migration script, I think what I'm gonna do it move it to a separate issue.

I'm also considering putting the script onto gist (linked to in docs), so it's easier to bug fix and improve much later on. 🤔