[YUNIKORN-2008] Hide the column if all of its values are 'n/a' in the…

[wusamzong]

… table.

What is this PR for?

remove anything that resolves to "n/a" from the list as that is just noise.

What type of PR is it?

• - Improvement

What is the Jira issue?

• Open an issue on Jira https://issues.apache.org/jira/browse/YUNIKORN-2008/

How should this be tested?

Screenshots (if appropriate)

before-

after-
Display the column only if the content in all of the cells is not 'n/a'.
The following picture adds the rank name 'rank01' to db.json to demonstrate that it works correctly, which isn't included in this commit.

Questions:

• - The licenses files need update.
• - There is breaking changes for older versions.
• - It needs documentation.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1a51966) 66.66% compared to head (bffa39c) 66.66%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #148   +/-   ##
=======================================
  Coverage   66.66%   66.66%           
=======================================
  Files           1        1           
  Lines          30       30           
=======================================
  Hits           20       20           
  Misses          7        7           
  Partials        3        3           

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[wusamzong]

Thanks to @stu01509 for the suggestion, I have updated the code accordingly.

[wilfred-s]

LGTM
all comments from @stu01509 were handled