Change logger format and accelerate empty mapblock init

- Map: Do not create and store name/id mappings for each one of the 4096 air nodes set when initiating an empty mapblock
 - Logger: Use `module` rather than `name` for the format

.gitignore

@@ -1,3 +1,4 @@
 __pycache__/
 *.sqlite
 *.mts
+env/

src/logger.py

@@ -10,7 +10,7 @@ import logging
 def init_logging(debug=False):
 	logger = logging.getLogger()
 
-	formatter = logging.Formatter("%(asctime)s %(name)s:%(funcName)-25s:%(lineno)-4s %(levelname)-8s %(message)s")
+	formatter = logging.Formatter("%(asctime)s %(module)s:%(funcName)-25s:%(lineno)-4s %(levelname)-8s %(message)s")
 
 	strhandler = logging.StreamHandler()
 	strhandler.setLevel(logging.DEBUG)

src/map.py

@@ -62,8 +62,9 @@ class MapBlock:
 
 			for x in range(4096):
 				self.set_node(x, Node("air"))
-				self.name_id_mappings = self.create_name_id_mappings()
-				self.num_name_id_mappings = len(self.name_id_mappings)
+
+			self.name_id_mappings = self.create_name_id_mappings()
+			self.num_name_id_mappings = len(self.name_id_mappings)
 
 	def create_name_id_mappings(self):
 		names = []