Add get_table function.

data/guild.py

@@ -94,6 +94,10 @@ class Guild:
         if table.name not in self._table_map:
             self._table_map[table.name] = table
 
+    def get_table(self, table_name: str) -> Table:
+        """Getter for specific table."""
+        return self._table_map[table_name]
+
     def to_dict(self) -> dict:
         """
         Creates python dictionary object from class data.