decoder: h264: fix assignment of LongTermFrameIdx.

Complement fix committed as e95a42e.

The H.264 AVC standard has to say: if the field is part of a reference
frame or a complementary reference field pair, and the other field of
the same reference frame or complementary reference field pair is also
marked as "used for long-term reference", the reference frame or
complementary reference field pair is also marked as "used for long-term
reference" and assigned LongTermFrameIdx equal to long_term_frame_idx.

This fixes decoding of MR9_BT_B in strict mode.

https://bugs.freedesktop.org/show_bug.cgi?id=64624
https://bugzilla.gnome.org/show_bug.cgi?id=724518

Signed-off-by: Zhong Cong <congx.zhong@intel.com>
print longTermPicNum.

Signed-off-by: Zhong Cong <congx.zhong@intel.com>
add print interlace.

Signed-off-by: Zhong Cong <congx.zhong@intel.com>
print frame_num in codecparsers.
print short term pic num.

Signed-off-by: Zhong Cong <congx.zhong@intel.com>
print findShortRermReference.

Signed-off-by: Zhong Cong <congx.zhong@intel.com>
Merge branch 'master' of github.com:zhongcong/libyami