Added definitions for Common class (#49416)
Added definitions for Common class (#49416)

* added type definitions for Common class

* edit for linter

* small edits to random and choose methods
georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped