Description

Implement explicit-member-accessibility

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I propose to implement a single option accessibility taking a value among:

• explicit: requires an accessibility modifier for every member that allows that (a safe fix will add public).
• none: forbid all accessibility modifiers (public, protecetd, public).
• noPublic: forbid the use of public (a safe fix will remove it).

In contrast to the ESLint rule, I think we should use noPublic as the default because the omission of public1 is more common than its explicit use.

Note that we should always ignore parameter properties in constructors.