add OAR properties for cpu_count, core_count, thread_count (bug 11676)

assigned to @ddelabro

added 62 commits

ae413819...d90dad5c - 40 commits from branch master
93f0c572 - [dev/oar-prop] 'if options[:diff]' is not needed since do_diff if only called...
415c89eb - [dev/oar-prop] options[:diff] is always true, no need to test here
3ce7050e - [dev/oar-prop] let's not set values inside ternary operators
0630036f - Gemfile.lock: upgrade json gem version to 2.5.1. Needed for Ruby 2.7 compatibility
fdbacbb7 - [dev/oar-prop] drop VERBOSE mode selection
c337bd70 - [dev/oar-prop] Adjust tests output
a46672fe - [dev/oar-prop] do not ignore gpu_model
8917703f - [dev/oar-prop] Adjust test outputs for oar_properties2_spec
9d06c885 - [spec] move arguments tests to a separate file
eee222de - [spec] move helpers code to spec_helper
517ed66b - [spec] Rewrite oar_properties_spec using separate output as in oar_properties2_spec
5e351f18 - [dev/oar-prop] drop support for faulty_*
4c5f1c60 - [dev/oar-prop] Remove now-useless tests
f79a73cb - [dev/oar-prop] drop special exception handling
fc9b2b45 - [dev/oar-prop] drop support for running print/update at the same time as diff...
35e76e3b - [dev/oar-prop] better comments
9fd98d2d - [dev/oar-prop] drop useless variable
cfc46d81 - [dev/oar-prop] keep track of TODOs
7bbb2aa9 - [spec] drop useless variable
981a7687 - [spec] add test case for contiguous-grouped-by-threads
2f97e74d - [dev/oar-prop] replace empty symbol by text to avoid problem with UTF8 on gitlab
409eff6d - [dev] Add OAR properties for cpu_count, core_count, thread_count (bug 11676)

added 25 commits

409eff6d...6682d85e - 24 commits from branch master
392504eb - [dev] Add OAR properties for cpu_count, core_count, thread_count (bug 11676)

enabled an automatic merge when the pipeline for 392504eb succeeds

merged

mentioned in commit e45e351b

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