Various changes to the Buildbot test-farm

[sponce24]

Various small changes have been made:

• Addition/modifications to Buildbot config files
• Slight raising of some tolerances to pass on intel18 and to circonvent the relative tolerance issue when the value are exactly 0.

[codecov]

Codecov Report

Merging #220 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #220   +/-   ##
========================================
  Coverage    61.28%   61.28%           
========================================
  Files           29       29           
  Lines        17098    17098           
========================================
  Hits         10479    10479           
  Misses        6619     6619

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