[javascript] Prohibit any console methods

[dschach]

Proposed Rule Name:
AvoidConsoleStatements

Proposed Category:
Performance or Security

Description:
Use of console.log or console.error can expose sensitive data and is a performance hit. We have a rule for this in Apex, and should have a similar one for JavaScript.

Code Sample: This should include code, that should be flagged by the rule. If possible, the "correct" code
according to this new rule should also be demonstrated.

console.log('foo'); // bad
console.error('foo'); // bad

Possible Properties:

• Should this rule be customizable via properties?
  Perhaps we specify the kinds of console statements we block? error vs log vs ...

Context:

• Related Apex Rule: AvoidDebugStatements