[Bf-python] object restrict from outliner.

[Campbell Barton]

just added 3 props to the BPyObject
ob.restrictDisplay
ob.restrictSelect
ob.restrictRender

These all modify the ob->restrictflag , curretnly toggleable from thge 
outliners 3 columns

- Matt suggested I match the C names (restrict) but It may be better

incase these names are too long other possibilities are

ob.noDisplay
ob.enableDisplay
ob.dontDisplay

- Any suggestions?