feat: added slog component and writer factory renamed

[ShyamSunder149]

Hey,

I have addressed issue #2 and #4 in this PR. Kindly check and let me know whether this can be merged..

Note : Tried running lint but since there were a lot of blockers in the previous code it will not run as expected but my code doesn't have blockers. just mentioning this if this will be run in a pipeline...

Thanks

[ritvikos]

For #2, the implementation adds a restrictive logger abstraction (slogWrapper) for components. Actually it deviates from the intent of exposing slog.Logger directly at component-level (here Spooler)

For #4, the implementation adds deep nesting. It'd be cleaner to expose relevant methods directly in Writer.

Thanks for your time :)