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ARROW-7084: [C++] Check for full type equality in ArrayRangeEquals

ArrayRangeEquals would only checks type IDs before comparing values. Make it check the actual type instances instead.

Also, fix the MapArray comparison logic to avoid accounting for field names.

Closes #7496 from tianchen92/ARROW-7084

Lead-authored-by: Antoine Pitrou <antoine@python.org>
Co-authored-by: tianchen <tianchen@apache.org>
Signed-off-by: Antoine Pitrou <antoine@python.org>