[clr-ios] Implement performance benchmarks for interpreter and R2R on Apple devices

[kotlarmilos]

Description

Measure startup, size, and build time in performance pipeline of Release and Debug builds on iOS in two runtime modes: interpreter-only and interpreter+R2R.

Tasks

• [iOS] Add interpreter measurements for dotnet/runtime HelloWorld app performance#4957
• [perf] Setup iOS performance measurements on CoreCLR #120139
• Profile performance of Debug and Release builds
  • R2R SDK assemblies in a single composite bubble on desktop and measure build time
  • Use collected measurements to decide on Debug build setup (how many assemblies to R2R and what is build time)
• Replace dotnet/runtime sample running interpreter+R2R
• Standup MAUI sample app in Debug build running interpreter+R2R
• Standup MAUI sample app in Release build running interpreter+R2R

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