ID property access from python for pose channels, bones and any ID objects.

ID property access from python for pose channels, bones and any ID objects.
The advantage with this is that global property definitions are not needed to add a property to an object.

to avoid confusion these are accessed like a dictionary (closely matching how the BGE accesses properties)

 ob["mySetting"] = 1.0

 bone["foo"] = {"one":1, "two":2.1, "three":"Three"}

 if "foo" in bone: print("prop found...")

At the moment these can also be accessed as attributes, will be changed shortly. eg.
 bone.foo == bone["foo"]