Added binding for ACTIVEVESSEL - Like "SHIP", but always refers to
the active vessel even when the current CPU Vessel is not the active
vessel.
Resolves #185 : Vecdraw now draws from Shared.Vessel

instead of drawing from FlightGlobals.ActiveVessel like it used to.
Merge remote-tracking branch 'Dunbaratu/suffix-activevessel' into develop
Merge remote-tracking branch 'Dunbaratu/vecdraw-cpuvessel-orgin' into develop