add Method
Merge branch 'master' of https://github.com/VSDekar/BigNumberDemo

Conflicts:
	Debug/DemoBigNumber.exe
	Debug/DemoBigNumber.ilk
	Debug/DemoBigNumber.pdb
	DemoBigNumber.sdf
	DemoBigNumber.v12.suo
	DemoBigNumber/BigNumber.cpp
	DemoBigNumber/BigNumber.h
	DemoBigNumber/Debug/BigNumber.obj
	DemoBigNumber/Debug/DemoBigNumber.log
	DemoBigNumber/Debug/DemoBigNumber.obj
	DemoBigNumber/Debug/DemoBigNumber.tlog/CL.read.1.tlog
	DemoBigNumber/Debug/DemoBigNumber.tlog/CL.write.1.tlog
	DemoBigNumber/Debug/stdafx.obj
	DemoBigNumber/Debug/vc120.idb
	DemoBigNumber/Debug/vc120.pdb
	DemoBigNumber/DemoBigNumber.cpp