Add Docker images for neofs-adm

[realloc]

%subj%

[codecov]

Codecov Report

Merging #680 (3ece387) into master (cf8f640) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #680   +/-   ##
=======================================
  Coverage   43.00%   43.00%           
=======================================
  Files         207      207           
  Lines        8130     8130           
=======================================
  Hits         3496     3496           
  Misses       4290     4290           
  Partials      344      344           

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[alexvanin]

I think it is time to think about separate docker dir for docker files.