add track sps change for each layer
Don't override the deblocking setting in the encoder test

Since this is on by default now, we don't need a separate test
that has it enabled. Thus we can now remove one of the encoder
tests.

By not overriding the deblocking setting at all, the hash
changes for the other tests that use SEncParamExt.
Merge pull request #684 from mstorsjo/remove-deblocking-test

Don't override the deblocking setting in the encoder test
decMbAux UT bug fix
Merge pull request #685 from licaiguo/tracklayersps

add track sps change for each layer
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
Add calling of FME preprocess calculation
reformat
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
Updated XCode projects to properly launch for arm64 architecture
Merge pull request #700 from mstorsjo/disable-neon-arm64

Updated XCode projects to properly launch for arm64 architecture
Merge pull request #690 from sijchen/fme_merge65

[Encoder ME] Add calling of FME preprocess calculation

Approved by Xiaolin.