Add ADB reverse port forwarding support

[rmarinho]

Summary

Add support for ADB reverse port forwarding to AdbRunner (or a new helper), enabling the MAUI DevTools CLI to manage hot-reload tunnels without going through ServiceHub.

Context

The VS Code MAUI extension currently uses the C# ServiceHub (AndroidDeviceManager.reversePort() / killReverse()) to set up reverse port forwarding for .NET Hot Reload. As part of the ServiceHub → CLI migration (see dotnet/android#12073 for related device monitoring work), we need these ADB operations exposed as library APIs that the MAUI DevTools CLI can call.

What the ServiceHub does today

From Microsoft.VisualStudio.Maui.Devices:

• reversePort(deviceSerial, remotePort, localPort) → runs adb -s <serial> reverse tcp:<remote> tcp:<local>
• killReverse(deviceSerial, remotePort) → runs adb -s <serial> reverse --remove tcp:<remote>

Consumer

• VS Code extension: MauiAndroidPlatform.ts → createLocalTunnels() (sets up hot reload tunnel on deploy)
• VS Code extension: MauiAndroidPlatform.ts → cleanUpDebugSession() (removes tunnel on stop)

Proposed API

Add to AdbRunner (or create AdbPortForwarder):

`csharp
// Set up reverse port forwarding
Task ReversePortAsync(string deviceSerial, int remotePort, int localPort, CancellationToken ct = default);

// Remove a specific reverse port forwarding rule
Task RemoveReversePortAsync(string deviceSerial, int remotePort, CancellationToken ct = default);

// List active reverse port forwarding rules (optional, nice-to-have)
Task<IReadOnlyList> ListReversePortsAsync(string deviceSerial, CancellationToken ct = default);
`

CLI Command (downstream in dotnet/maui)

Once the API exists here, the MAUI DevTools CLI will expose:
maui android adb reverse --device <serial> --remote tcp:<port> --local tcp:<port> --json maui android adb reverse --remove --device <serial> --remote tcp:<port> --json

Related

• Add ADB track-devices support for efficient device monitoring android#12073 — ADB track-devices support (device monitoring)
• ServiceHub migration tracking in vscode-maui (dev/rumar/android-maui-tool branch)