chore: version 1.0.7 - add log levels

- Add configurable log levels: DEBUG, INFO, WARN, ERROR
- Replace debug.enabled with log.level in configuration
- Add Warn/Warnf methods for warning messages
- Log orphan events and buffer overflow as WARN
- Log parse errors as WARN
- Log raw events and correlations as DEBUG

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

config.example.yml

@@ -1,6 +1,10 @@
 # logcorrelator configuration file
 # Format: YAML
 
+# Logging configuration
+log:
+  level: INFO  # DEBUG, INFO, WARN, ERROR
+
 inputs:
   unix_sockets:
     - name: http