Update to v0.8.0

[patdhlk]

1. Iox2Log.cs

• Updated class-level documentation with details about v0.8.0 logging changes
• Added list of available loggers (console, buffer, file, log, tracing)
• Added build instructions for enabling file logger
• UseConsoleLogger(): Marked as [Obsolete], now returns true (no-op since console is default)
• UseFileLogger(): Marked as [Obsolete], throws NotSupportedException with instructions for alternatives

2. Iox2NativeMethods.cs

• Removed P/Invoke declarations for iox2_use_console_logger() and iox2_use_file_logger()
• Added comments explaining these were removed in v0.8.0

3. examples/Logging/Program.cs

• Updated basic example to note console logger is now default
• Removed call to UseConsoleLogger() (no longer needed) -Rewrote file logger example to use a custom logger callback that writes to file

4. examples/Logging/README.md

• Added new section explaining v0.8.0 logging backend changes
• Listed available loggers and their feature flags
• Added build instructions for enabling native file logger
• Updated API usage examples to reflect new behavior

5. examples/LoggingIntegration/README.md Added note about v0.8.0 changes and that SetLogger() continues to work

#5

[dkroenke]

Some documentation nitpicks from the examples:

• ComplexDataTypes: There is no PointData but a Point3D data type
• ObservableWaitSet: The maximum possible value of the event id is 255 so that a notify with event id 456 will result in a crash. See https://github.com/eclipse-iceoryx/iceoryx2/blob/v0.8.0/doc/release-notes/iceoryx2-v0.7.0.md#config-breaking-changes
• WaitSetMultiplexing: Same like ObservableWaitSet example

[dkroenke]

Looks good and the Logging Example is functional. From my side this PR is ready to review so that we can run the CI.

[dkroenke]

LGTM, thank you!