POC2: precalculate data for /packages APIs

[MichaelMraka]

Secure Coding Practices Checklist GitHub Link

• https://github.com/RedHatInsights/secure-coding-checklist

Secure Coding Checklist

• Input Validation
• Output Encoding
• Authentication and Password Management
• Session Management
• Access Control
• Cryptographic Practices
• Error Handling and Logging
• Data Protection
• Communication Security
• System Configuration
• Database Security
• File Management
• Memory Management
• General Coding Practices

[jira-linking]

Referenced Jiras:
https://issues.redhat.com/browse/RHINENG-2281
https://issues.redhat.com/browse/RHINENG-2282
https://issues.redhat.com/browse/RHINENG-2283
https://issues.redhat.com/browse/RHINENG-2284

[codecov-commenter]

Codecov Report

Attention: 113 lines in your changes are missing coverage. Please review.

Comparison is base (997b6bc) 62.00% compared to head (a85afef) 61.32%.
Report is 1 commits behind head on master.

Files	Patch %	Lines
base/database/testing.go	0.00%	43 Missing ⚠️
evaluator/evaluate_packages.go	64.34%	31 Missing and 10 partials ⚠️
base/database/utils.go	0.00%	18 Missing ⚠️
manager/controllers/system_packages_export.go	72.72%	4 Missing and 2 partials ⚠️
manager/controllers/system_packages.go	75.00%	1 Missing and 1 partial ⚠️
manager/controllers/package_systems.go	91.66%	0 Missing and 1 partial ⚠️
manager/controllers/package_systems_export.go	75.00%	0 Missing and 1 partial ⚠️
tasks/caches/refresh_packages_caches.go	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1343      +/-   ##
==========================================
- Coverage   62.00%   61.32%   -0.68%     
==========================================
  Files         108      108              
  Lines        6811     6855      +44     
==========================================
- Hits         4223     4204      -19     
- Misses       2054     2113      +59     
- Partials      534      538       +4     

Flag	Coverage Δ
unittests	61.32% <53.49%> (-0.68%)	⬇️

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[MichaelMraka]

This POC did not meet expectations, the evaluation part is significantly slower and small improvement in speed of /packages API is not going to overweight it.
Closing without merge into master.