rewrite conf file substitution processing

[kkaarreell]

• Consolidating substituation patterns used in config files
• Redesign getDefaultSubstitutionRules() function so adding parameters is more flexible
• add support for namespace substitution - resolves [cypress] add namespace parameter to config/violations-config.yaml #410

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: kkaarreell, ycao56
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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[kkaarreell]

Hi @ChunxiAlexLuo , there is some failure in Travis but unrelated to cypress tests. Can you fix the problem or forcibly merge this PR? As the change is quite big I do not want to keep it open for a long time as I am afraid of conflicts with other PRs.