Add Native Regex Implementation

[sancarn]

Think this should be added too:

https://github.com/sihlfall/vba-regex

It's a native VBA regex implementation.

The author has made a stdVBA replacement for stdRegex too here: https://github.com/sihlfall/stdVBA/blob/regex-vbaonly/src/WIP/stdRegex3/stdRegex3.cls

With minor modifications it should work on Mac too. (mainly with replacing CreateObject with some CreateDict() and supplying a seperate Dictionary library like FastDict