Add Mac Catalyst RIDs

[steveisok]

First step in being able to build different mac catalyst runtimes

Resolves #47518

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Issue Details

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First step in being able to build different mac catalyst runtimes

Resolves #47518

Author:	steveisok
Assignees:	-
Labels:	area-Infrastructure-libraries
Milestone:	-

[safern]

cc: @ericstj

[akoeplinger]

Note: there's still some discussion ongoing in #47518 about whether we should use maccatalyst as the RID instead.

[ericstj]

cc @directhex @Anipik we also have a simplified RID graph that we use for building libraries in dotnet/runtime here:

runtime/src/libraries/OSGroups.json

Line 17 in 6fe449f

"iOS": {

. You may want to update this as well if you intend to add maccatalyst build of dotnet/runtime.

[ericstj]

Thanks for the discussion, this LGTM