feat: Source Based Distribution

[denischilik]

Background

• We need to update Package.swift to distribute framework as sources

What Has Changed

• Update Package.swift
• Update Integration tests and mappings
• Update Readme to match changes

Screenshots/Video

• {Include any screenshots or video demonstrating the new feature or fix, if applicable}

Checklist

• I have performed a self-review of my own code.
• I have made corresponding changes to the documentation.
• I have added tests that prove my fix is effective or that my feature works.
• I have tested this locally.

Additional Notes

• {Any additional information or context relevant to this PR}

Reference Issue (For employees only. Ignore if you are an outside contributor)

• Closes https://go/j/[ticket-number]

[github-actions]

📦 SDK Size Impact Report

Measures how much the SDK adds to an app's size (with-SDK minus without-SDK).

Metric	Target Branch	This PR	Change
App Bundle Impact	1.60 MB	1.60 MB	+N/A
Executable Impact	896 bytes	896 bytes	+N/A
XCFramework Size	5.37 MB	5.38 MB	+4 KB

➡️ SDK size impact change is minimal.

Raw measurements

Target branch (workstation/9.0-Release):

{"baseline_app_size_kb":84,"baseline_executable_size_bytes":75464,"with_sdk_app_size_kb":1724,"with_sdk_executable_size_bytes":76360,"sdk_impact_kb":1640,"sdk_executable_impact_bytes":896,"xcframework_size_kb":5500}

This PR:

{"baseline_app_size_kb":84,"baseline_executable_size_bytes":75464,"with_sdk_app_size_kb":1724,"with_sdk_executable_size_bytes":76360,"sdk_impact_kb":1640,"sdk_executable_impact_bytes":896,"xcframework_size_kb":5504}

[BrandonStalnaker]

I assume renaming mParticle_Apple_SDK_NoLocation to mParticle_Apple_SDK will occur in the next PR. I found one change that's pretty minor but it looks great otherwise.

[BrandonStalnaker]

LGTM