[MSFT] Factor out Quartus/Stratix10 logic from TclEmitter

[mortbopet]

Refactoring commit which makes TclEmitter generic by allowing inheriting classes to provide custom TclOutputState classes. Furthermore, adds new arguments to msft-export-tcl to select tcl flavor and target device, respectively. The intention of this refactor is to facilitate writing TCL emitters for alternative flows and devices.