feat(func): Convert to uniform log levels

Take input text with various references to log levels and return a standardized uppercase log level name.

cfddns.sh

@@ -47,6 +47,30 @@ uppercase() {
   echo "$1" | tr '[:lower:]' '[:upper:]'
 }
 
+standardizeLogLevels() {
+  LEVEL_TO_STANDARDIZE="$(lowercase "$1")"
+  case "$LEVEL_TO_STANDARDIZE" in
+  "critical" | "crit" | "fatal")
+    echo "CRIT"
+    ;;
+  "error" | "err")
+    echo "ERR"
+    ;;
+  "warning" | "warn")
+    echo "WARN"
+    ;;
+  "information" | "info")
+    echo "INFO"
+    ;;
+  "debug" | "verbose")
+    echo "DEBUG"
+    ;;
+  *)
+    echo "INFO"
+    ;;
+  esac
+}
+
 ### functions
 badParam() {
   if [ "$1" = "null" ]; then