[Swift shipping] Performance benchmarking framework for Swift projection tooling

[kotlarmilos]

Overview

The goal is to setup a framework to evaluate the performance of Swift interop. This framework will measure the key metrics below:

• Invocation latency: Measure the time required for method invocations with direct P/Invoke, Swift bindings, and Objective-C bindings. The final goal should be to be competitive compared to other direct-interop scenario, where our interop cost shouldn't be so great that it shadows the provided utility of the interop.
• Size on disk: Track disk space utilization for generated bindings in AOTed iOS/macCatalyst app. The final goal should be to provide trimmable and scalable bindings.

Tasks:

• Framework architecture design
• Telemetry integration to gather usage data
• Implement performance benchmarking
• Implement dashboards