Converts Html Char Codes to Ascii Char Codes

Today I discovered the Asset Model Builder doesn't play well with hard coded Extended ascii characters. I had to change a lot of µ to Chrw(230) and such. That's called a micro, by the way. Since I had to do half of them, I figured I'd do the other half too and share it with hopes no one else has to do it.

Given a String potentially containing HtmlCharacterCodes, such as &mico;, ß, or even &sp; This function safely changes those special character codes to extended ascii codes. It uses StringBuilder because strings are immutable values. This will maximize performance.