GSheetsRegex - A port of the RegEx functions from Google Sheets for Excel using ExcelDNA

This is a small C#/ExcelDNA project to create an Excel Add-In to give the Regex functionality that exists in Google Sheets. The three main Regex functions: REGEXMAATCH, REGEXEXTRACT & REGEXREPLACE have been ported and one new function created REGEXMATCHCOUNT which returns the number of matches that are found in a specified text by an expression. I have also extended the original three functions with some additional, optional parameters giving some additional control over the behavior of the Regex parsing.