Merge branch '1/slava/change_makefile' into 'master'

refactor(cors): change makefile, add gitlab-ci and remove not using files

See merge request !1
6 jobs for master in 1 minute and 20 seconds (queued for 17 seconds)
Name Stage Failure
failed
build-wheel Build
Skipping Git submodules setup
Executing "step_script" stage of the job script
$ make build-wheel
Traceback (most recent call last):
File "/builds/prozorro-sale/cors/setup.py", line 3, in <module>
from setuptools import find_packages, setup
ModuleNotFoundError: No module named 'setuptools'
make: *** [Makefile:81: build-wheel] Error 1
ERROR: Job failed: command terminated with exit code 1