Warn if a brand tag is used in a non-matching country/region

[doublah]

With osmlab/name-suggestion-index#3135, there are now 3 entries for Travelodge worldwide.
However all previously suggested to upgrade buildings won't suggest the appropriate brand to upgrade to, and won't suggest to remove the bad old brand tags.

Examples: https://www.openstreetmap.org/way/214628168, https://www.openstreetmap.org/way/521226316

We need to:

• suggest removal of tags if no longer valid (e.g. if a countryCode is no longer valid for the tagged object/brand removed from name-suggestion-index).
• suggest correct tags for names with multiple brands operating under said name, if brands don't overlap in operating areas, this would also affect brands like Londis, with 2 brands operating under that name, but with no countryCode overlap, so it's safe to suggest brand tags.

[quincylvania]

@doublah Cool idea. We're doing #6941 next which will give iD a much better sense of countries. That will unblock this issue along with #6479 and #6513.

Also related: #6523, which involves removing brands that no longer exist according to NSI.

[bhousel]

yea this is #6523

[quincylvania]

@bhousel I see #6523 as just about dissolved brands and this issue about brands that don't match the country but they are pretty similar.

[bhousel]

I see #6523 as just about dissolved brands and this issue about brands that don't match the country but they are pretty similar.

oh sorry, let me reopen and rename..
The country-coder work I've done in osm-community-index can also work for name-suggestion-index, to let us get much more accurate about where brands operate.