build: add lint rule to enforce coercion static properties for setters

[crisbeto]

Adds a custom tslint rule to enforce that properties which use coercion in a setter also declare a static property to indicate the accepted types to ngtsc. Also handles inherited setters and properties coming from an interface being implemented (necessary to support mixins).

Relates to #17528.

[jelbourn]

LGTM

[devversion]

LGTM in general. I already ran this rule against my PR (a few instances are intentionally ignored due to the lint rule not being 100% correct; which is totally fine). These are the points we should improve though:

• Checking if the setter is already typed to work with coercion. i.e. either contains null or string in the type
• We should not warn for abstract directives or vanilla classes if they use coercion

[devversion]

@crisbeto We chatted about this on Slack. do you want to look into these things as part of this PR or in follow-ups? Feel free to add merge ready based on what you prefer.

[crisbeto]

I'll make the changes in this PR.

[crisbeto]

Added the changes to skip abstract directives and to ignore setters which are any or string.

[devversion]

LGTM. One minor comment

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