Allow Linking of Coordinate System of grats/grids to map

Idea created by NZGeoCAD on Sep 14, 2020

    When updating the coordinate system of a map (i.e. moving to a different UTM zone) using Python in ArcGIS PRO, the coordinate system of the associated layout grid(s) is not updated. Choosing the Coordinate System of the grid to match the coordinate system of the map within the UI only reads that coordinate system one time (it then sets it to that coordinate system)- It isn't "tied" to the map and so is not updated when the map is updated which is a useful option when writing tools to work in multiple utm zones.

    There doesnt appear to be away within python to update the coordinate system of grids directly.