EscapeDollarCurly escapes the dollar sign in the curly braces to allow stings like "${MyVar}" to be expressed as a string value.

EscapeDollarCurlyPointer escapes the dollar sign in the curly braces to allow stings like "${MyVar}" to be expressed as a string value.

UnEscapeDollarInMap is a naive way of unescaping strings that assumes any string whose entire contents is two dollar signs, an opening curly bracket, some content, and a closing curly bracket was meant to be a HCL interpolated string.