Copy CID to clipboard

Places registered in Google Maps are assigned a Customer ID (CID) identifier, which can be given as a URL parameter when opening Google Maps to display a map of that place. This extension adds a "Copy CID to clipboard" item to the context menu when Google Maps is open. It will copy the CID to the clipboard if it exists in the URL of the map. Version 1.1 adds a CID display to the place details field, in addition to the traditional method of using the extension's button or context menu, so that it can be copied to the clipboard by simply clicking on it, just like an address or phone number, etc.