Epiphany: Rename HSTATUS to FSTATUS to match the manual.
Epiphany: Rename DEBUG to DEBUGSTATUS to match the manual.
Epiphany: Rename MESHMULTICAST to MULTICAST to match the manual.
Epiphany: Rename SWRESET to RESETCORE to match the manual.
Epiphany: Add the DEBUGCMD register.
Epiphany: Add the {C,X,R}MESHROUTE registers.