Feat: Add --skip CLI option and optimize skipped rule processing

This PR introduces two key improvements:

1. New --skip Command-Line Option:

   • Allows users to specify a list of rule IDs (e.g., --skip rule1,rule2) to be skipped during execution.
   • These rules are added to any rules already skipped via the configuration file.
   • This provides a convenient way to disable entire rules directly from the command line, overriding any partial skips defined in the configuration for the same rule ID (i.e., if partially skipped in config but fully skipped via CLI, the rule is fully skipped).

2. Performance Optimization for Skipped Rules:

   • Previously, all rules were processed/compiled, and their results were filtered afterwards according to the skip configuration.
   • This change optimizes the process: Rules marked for complete skipping (either via config or the new --skip CLI option) are now identified before processing and are not compiled or executed.
   • This avoids unnecessary computation for fully skipped rules, improving performance. Partial rule filtering (e.g., based on specific findings like osv_id) still requires the rule to be processed first.