[clr-ios] Improve inner dev loop on Apple mobile platforms with CoreCLR and Interpreter

[kotlarmilos]

Description

Measure and identify the main contributors to the inner dev loop on Apple mobile platforms using R2R and Interpreter.

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Tagging subscribers to 'os-ios': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
See info in area-owners.md if you want to be subscribed.

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Tagging subscribers to this area: @BrzVlad, @janvorli, @kg
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