Add tools.h file for come base configure and base define.
Add tools.h file for come base configure and base define.

	- Inluding typedefine of base integral type.
	- min-max program.
	- swap grogram.
	- attibtutes of compilers.
	- likely and unlikly.
	- container_of for cast a member of a structure out to the
		containing structure.
	- READ_ONCE and WRITE_ONCE.

quant67/kutil,quant67/kutil