core (constants): Bool method allow to convert from python bool to string constant for true/false (in both directions)

src/core/constants.py

@@ -186,3 +186,8 @@ class Const(object):
         # XXX: we use a classmethod so we can use Const inheritance to change default options
         return(cls.LOG_OPT_COLORS, cls.LOG_OPT_LEVEL, cls.LOG_OPT_FORMAT, cls.LOG_OPT_LOGGER, cls.LOG_OPT_OUTPUT)
 
+    @classmethod
+    def bool(cls, value):
+        if isinstance(value, bool):
+            return cls.BOOL_TRUE if value else cls.BOOL_FALSE
+        return value.lower() == cls.BOOL_TRUE