Remove the standalone LocalizeTagHelperOptions class

[AdmiringWorm]

This is planned to be remove the standalone options class in favor of having a universal settings class used by both the helpers and the planned scope helper (with all of the same options).

I could not find a sufficient way to deprecate the class first, as such it will be completely removed instead in the next major release.

[AdmiringWorm]

I am thinking of combining all options into a LocalizeOptions class, unless it conflicts with any existing libraries that are in popular use.

I am open for suggestions though.

[stale]

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