Feat: Add constructor for basic_game Cog

Initializes bot like a regular Cog
Initializes an empty session dictionary
Initializes the class of the session with a possible default value
Changes the group command name to the Cog's name to avoid name clashes in commands

src/cogs/basic_game.py

@@ -6,7 +6,13 @@ from discord.ext import commands
 
 class Cog(commands.Cog):
 	"""A base game cog that has a collection of basic game commands and checkers"""
-	pass
+
+	def __init__(self, bot, session_cls=None):
+		self.bot = bot
+		self.sessions = {}
+		self.session_cls = Session if session_cls is None else session_cls
+		self.group = next(c for c in self.get_commands() if c.name == 'group')
+		self.group.name = self.qualified_name.lower()
 
 
 class Session: