Ehanced parameter metadata to include concepts of required/optional, …

[djaglowski]

…default values, and specific parameter types

Description of Changes

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[codecov]

Codecov Report

Merging #59 into master will increase coverage by 0.29%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##           master      #59      +/-   ##
==========================================
+ Coverage   74.94%   75.23%   +0.29%     
==========================================
  Files          63       64       +1     
  Lines        3835     3940     +105     
==========================================
+ Hits         2874     2964      +90     
- Misses        718      731      +13     
- Partials      243      245       +2     

Impacted Files	Coverage Δ
operator/plugin_parameter.go	84.21% <84.21%> (ø)
operator/plugin.go	94.94% <100.00%> (+0.73%)	⬆️

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[djaglowski]

Log Files	Logs / Second	CPU Average (%)	Memory Average (MB)
1	1000	2.793206	27.805225
1	5000	5.7759795	31.726562
1	10000	10.034738	44.04068
1	50000	37.74265	105.8917
1	100000	71.0124	176.01683
10	100	3.9829555	29.328125
10	500	8.344965	36.56102
10	1000	12.276159	41.660965
10	5000	46.363155	97.72952
10	10000	80.98528	189.02129