Signed-off-by: Vittorio Cozzolino <vittorio.cozzolino@huawei.com>

Reorganize folder structure of multiedgetracking.
Remove sync function with edge for multiedgertacking controllers (not used currently).
Edit README.md and Dockerfiles.
Remove some explicit parameters from YAML files (use default value).
Add empty line at the end of the YAML and Python files.
Add comments to the multiedgeinference code.
Minor edits to the run.sh script.
Update Docker image version number in YAML files.

Signed-off-by: Vittorio Cozzolino <vittorio.cozzolino@huawei.com>