Add decorator to methods

The "staticmethod" decorator was added to "fatal_error" and "exit_success" methods in class "gsquery". This saves memory and computation as Python doesn't have to instantiate a bound method for every instance of the class.

lgsm/functions/query_gsquery.py

@@ -59,11 +59,13 @@ class gsquery:
         self.response = None
         self.sanity_checks()
 
-    def fatal_error(self, error_message, error_code=1):
+    @staticmethod
+	def fatal_error(self, error_message, error_code=1):
         sys.stderr.write('ERROR: ' + str(error_message) + '\n')
         sys.exit(error_code)
 
-    def exit_success(self, success_message=''):
+    @staticmethod
+	def exit_success(self, success_message=''):
         sys.stdout.write('OK: ' + str(success_message) + '\n')
         sys.exit(0)