RUM-12420 Add KSCrash report minifier

[maxep]

What and why?

This PR adds DatadogMinifyFilter for the KSCrash integration, which reduces crash report size by removing unnecessary data. This is equivalent to the existing CrashReportInfoMinifier used in the PLCrashReporter integration. The filter removes unreferenced binary images and limits stack traces to 200 frames to optimize payload size for transmission.

How?

The filter operates on type-safe CrashFieldDictionary crash reports and performs two optimizations. First, it collects all object_addr values from thread backtraces (including main crash and recrash reports) and filters the binary_images array to keep only those whose image_addr appears in the collected set. Second, when a thread's backtrace exceeds 200 frames, it removes frames from the middle of the stack trace to preserve the most important top and bottom frames, and marks the backtrace as truncated.

Review checklist

• Feature or bugfix MUST have appropriate tests (unit, integration)
• Make sure each commit and the PR mention the Issue number or JIRA reference
• Add CHANGELOG entry for user facing changes
• Add Objective-C interface for public APIs (see our guidelines (internal) and run make api-surface)