decMbAux UT bug fix
divide copy_mb functions into new file for decoder use from encoder and add files for EC in decoder only.
Merge pull request #687 from JuannyWang/decMbAuxBugFix

[Encoder UT] decMbAux UT bug fix
Merge pull request #689 from huili2/add_file_CopyMB_EC

divide copy_mb functions into new file for decoder use from encoder and ...
update ios project files
Merge pull request #692 from licaiguo/update-ios-project

update ios project files
update help info for console app
Merge pull request #697 from ruil2/enc_test

update help info for console app