Add unit tests for Router configuration and transport layers

- Implemented tests for RouterConfig, RoutingOptions, StaticInstanceConfig, and RouterConfigOptions to ensure default values are set correctly.
- Added tests for RouterConfigProvider to validate configurations and ensure defaults are returned when no file is specified.
- Created tests for ConfigValidationResult to check success and error scenarios.
- Developed tests for ServiceCollectionExtensions to verify service registration for RouterConfig.
- Introduced UdpTransportTests to validate serialization, connection, request-response, and error handling in UDP transport.
- Added scripts for signing authority gaps and hashing DevPortal SDK snippets.

tests/StellaOps.Gateway.WebService.Tests/StellaOps.Gateway.WebService.Tests.csproj

@@ -8,8 +8,12 @@
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+    <PackageReference Include="Microsoft.Extensions.Logging" Version="10.0.0-rc.2.25502.107" />
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