Multi-thread parsing implementation.

BZ: 158125

1. Refactor h.264 parser to resolve logical and data structure dependency for multithreading
   and to  improve PnP.
2. Two multithread parsing schemes were implemented: bundle input and sequential input.
   Default to bundle scheme.

Change-Id: I245f11d6c8083a35c3cc13fef25a1e32ded66b29
Signed-off-by: Yuanjun Huang <yuanjun.huang@intel.com>
Signed-off-by: pingshix <pingx.shi@intel.com>
20 files changed