Create a new MGRS reference object from the given String. Must be correctly formatted otherwise an ArgumentException will be thrown. Matching regex: (\d{1,2})([A-Z])([A-Z])([A-Z])(\d{2,10})

Create a new MGRS reference object from the given UTM reference. It is assumed that this MGRS reference represents a point using the GRS 1980, International or WGS84 ellipsoids. It is assumed that the UTMRef object is valid.

Create a new MGRS reference object from the given parameters. An ArgumentException is thrown if any of the parameters are invalid.