[Staleness] API and Component Functionality

[jvigliotta]

Closes #6109

Describe your changes:

Added a Staleness functionality to the Telemetry API. Added staleness functionality/visibility to the following components and sections of Open MCT:

• LAD Tables
• LAD Table Sets
• Telemetry Tables
• Plots
• Stacked Plots
• Overlay Plots
• Condition Sets
• Gauges
• AlphaNumeric views in Displays
• Object Views

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Is this change backwards compatible? For example, developers won't need to change how they are calling the API or how they've extended core plugins such as Tables or Plots.

Author Checklist

• Changes address original issue?
• Tests included and/or updated with changes?
• Command line build passes?
• Has this been smoke tested?
• Testing instructions included in associated issue OR is this a dependency/testcase change?

Reviewer Checklist

• Changes appear to address issue?
• Reviewer has tested changes by following the provided instructions?
• Changes appear not to be breaking changes?
• Appropriate automated tests included?
• Code style and in-line documentation are appropriate?
• Has associated issue been labelled unverified? (only applicable if this PR closes the issue)
• Has associated issue been labelled bug? (only applicable if this PR is for a bug fix)

[codecov]

Codecov Report

Merging #6108 (a991224) into master (1b71a3b) will decrease coverage by 0.14%.
The diff coverage is 53.77%.

@@            Coverage Diff             @@
##           master    #6108      +/-   ##
==========================================
- Coverage   54.87%   54.74%   -0.14%     
==========================================
  Files         604      607       +3     
  Lines       25268    25917     +649     
  Branches     2303     2343      +40     
==========================================
+ Hits        13865    14187     +322     
- Misses      10754    11071     +317     
- Partials      649      659      +10     

Flag	Coverage Δ		*Carryforward flag
e2e-ci	39.49% <28.14%> (ø)		Carriedforward from 1ebc15e
e2e-full	51.23% <42.10%> (ø)		Carriedforward from 1ebc15e
e2e-stable	53.50% <58.60%> (+0.13%)	⬆️
unit	49.26% <35.44%> (-0.28%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...ugins/condition/components/ConditionCollection.vue	0.00% <0.00%> (ø)
src/plugins/condition/components/ConditionSet.vue	0.00% <0.00%> (ø)
src/plugins/condition/components/Criterion.vue	0.00% <0.00%> (ø)
...plugins/displayLayout/components/TelemetryView.vue	2.60% <0.00%> (-0.15%)	⬇️
src/plugins/LADTable/components/LADTable.vue	42.59% <26.66%> (-16.67%)	⬇️
src/plugins/plot/Plot.vue	35.84% <27.50%> (-25.69%)	⬇️
.../plugins/condition/criterion/TelemetryCriterion.js	44.81% <28.57%> (-6.85%)	⬇️
src/plugins/LADTable/components/LadTableSet.vue	49.41% <29.03%> (-10.59%)	⬇️
...ugins/condition/criterion/AllTelemetryCriterion.js	31.13% <29.09%> (-23.22%)	⬇️
src/plugins/telemetryTable/components/table.vue	41.19% <35.71%> (-0.22%)	⬇️
... and 33 more

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[akhenry]

Looks awesome. One code change request. Let me know how much work it is and we can discuss options.

[akhenry]

We should define the functions of a staleness provider here, no?

[jvigliotta]

K! let me know if looks ok.

[shefalijoshi]

LGTM! Thanks for making the changes.

[akhenry]

In initial testing I am seeing an issue when establishing initial staleness -

1. Navigate to a display layout containing multiple different telemetry visualizations
2. Wait for them to go stale. So far so good, staleness is being indicated as expected
   
3. Quickly navigate away and back again while still stale
   
4. Observe that only the alphanumeric display is in a stale state.

[akhenry]

I've a strong suspicion that the missing telemetry is explained by akhenry/openmct-yamcs#271 however isStale() is designed to handle this exact scenario so we should be showing staleness, if not telemetry :)