NEW @W-21364933@ Add suppression flag for the new inline suppression markers

[namrata111f]

As part of the Suppression epic, we are adding inline suppression markers. This feature will add performance impact in terms of space and time. Though not significant but considerable for large code bases (few seconds ~ 4s). Hence we want to only enable it for the users who want to particularly use it.

Tested following cases:
Case-1) When only --no-suppression flag is passed from cli. The violations are not suppressed:

% sf code-analyzer run -r all -c code-analyzer-parsing-test.yml -t utils.js --no-suppressions
=== Summary

Found 139 violation(s) across 1 file(s):
    12 High severity violation(s) found.
    78 Moderate severity violation(s) found.
    49 Low severity violation(s) found.

Case-2) When default values are used. Violations are suppressed:

% sf code-analyzer run -r all -c code-analyzer-parsing-test.yml -t utils.js
Code Analyzer [7:57:30.534]:
    132 violation(s) were suppressed by inline suppression markers.
=== Summary

Found 7 violation(s) across 1 file(s):
    7 Moderate severity violation(s) found.

Case-3) When cli passes the --no-suppression flag but the config yml has it disabled, suppressions are honored:

suppressions:
    disable_suppressions: false

 % sf code-analyzer run -r all -c code-analyzer-parsing-test.yml -t utils.js --no-suppressions
 Code Analyzer [7:53:49.11]:
    132 violation(s) were suppressed by inline suppression markers.
=== Summary

Found 7 violation(s) across 1 file(s):
    7 Moderate severity violation(s) found.

Case-4) When the flag is set false from config yaml:

suppressions:
    disable_suppressions: true

% sf code-analyzer run -r all -c code-analyzer-parsing-test.yml -t utils.js
=== Summary

Found 139 violation(s) across 1 file(s):
    12 High severity violation(s) found.
    78 Moderate severity violation(s) found.
    49 Low severity violation(s) found.

[aruntyagiTutu]

config validation is not required ?

[namrata111f]

config validation is not required ?

@aruntyagiTutu Config validation was added as part of the core PR: forcedotcom/code-analyzer-core#440