[Encoder ME] add Preprocess functions for FME
add the condition branch for screen content
fix static block assign in scd screen
add encoder UT of mbAux
fix pic partition bug
remove thread cpu core bind
remove redundant protect code
Merge pull request #631 from volvet/fix_pic_partition

fix pic partition bug
Merge pull request #626 from volvet/fix_scd_screen

fix static block assign in scd screen
Merge pull request #632 from volvet/rm_cpu_core_bind

remove thread cpu core bind
Merge pull request #623 from ruil2/enc_update

add the condition branch for screen content

Approved by Sijia Chen @ RBComments
Merge pull request #621 from sijchen/fme_merge42

[Encoder ME] add Preprocess functions for FME
Merge pull request #633 from volvet/rm_redundant_protect

remove redundant protect code
Merge pull request #629 from JuannyWang/mbAux

[Encoder UT] add encoder mbAux unittest
Merge branch 'master' of https://github.com/cisco/openh264