int getAllocationByteSize() {
		return allocationByteSize;
	}
Update the size and offset of the allocation unit.  Since this can
affect the size of this component, its bounds will be updated the component
repainted.
@param byteSize allocation byte size
@param byteOffset offset of allocation from start of composite
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/BitFieldPlacementComponent.java