Add HasDADft, HasJTAGDft Trait

Trait HasDADft:
        dftDANode = Source Node for DA DFT
        makeDADftPort = Make Direct Access Port for DFT

Trait HasJTAGDft:
        dftJTAGNode = Source Node for JTAG DFT
        makeJTAGDftPort = Make JTAG Port for DFT