Start to add X86/SSE2+ optimized clcore library

'sqrt' and 'clamp' are optimized on x86/sse2 target.

Change-Id: Ia8f1b12c666828de88c49699006e44b17431a9ac
Author: Michael Liao <michael.liao@intel.com>
Signed-off-by: Yong Chen <yong.a.chen@intel.com>
Signed-off-by: Xiaokang Qin <xiaokang.qin@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 61893
11 files changed