IO: Add GTFS protobuf module and Wire plugin

[ksharma-xyz]

TL;DR

Added Wire Protocol Buffer support for GTFS data processing with initial NSW stop definitions.

What changed?

• Created new GTFS IO module with Wire Protocol Buffer integration
• Added NswStop.proto file defining stop data structure
• Configured Wire plugin for Kotlin code generation from proto files
• Added necessary dependencies for Wire and Kotlin IO operations

How to test?

1. Run ./gradlew generateCommonMainProtos
2. Verify generated Kotlin files appear in build/generated/source/wire/
3. Confirm the generated code matches the NswStop.proto definitions

Why make this change?

Protocol Buffers provide an efficient, language-neutral mechanism for serializing structured transport data. This implementation will enable better handling of GTFS data across the application while maintaining type safety and reducing data transfer overhead.

[ksharma-xyz]

• Cleanup ViewModel, move logic to StopsResulsMAnager #652
• Read highPriorityStopsList from Flag rather than hard coding in app #651
• Add Flag API Use flag value LOCAL_STOPS_ENABLED  #650
• Network: Add footPathInfoRedundant flag to trip response #649
• Core: Add app-start module for launch operations #644
• DB: Add product class count query #648
• Version: Bump to 1.3.1 #642
• UI: Add stop filtering and prioritization for search results #641
• DB: Implement local stop search with product class filtering #640
• IO: Add NSW stops proto parser and resources #629
• IO: Add GTFS protobuf module and Wire plugin #628 👈 (View in Graphite)
• DB: Add NSW stops and product class tables #627
• main

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