Definition of a bit in a bitmask.
 The Bit object reside in a class volume as a child to a TypeDef of
 type Mask. Each Value object defines a bit in the mask.

 The value is of type UInt32, i.e. it can define the value
 1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,...,4294967296.