Rewrote main.py, Updated LICENSE

- Pushed bot class into its own file
- Now uses an .env file
- Listens for SIGINT and SIGTERM signals and acts accordingly

src/bot.py

@@ -0,0 +1,26 @@
+from discord.ext import commands
+import discord
+from utils.datetime_tools import get_elapsed_time_small, get_elapsed_time_milliseconds
+from logging import Logger
+from datetime import datetime
+
+class PostIt_Bot(commands.Bot):
+    """Class to extend the built-in """
+    def __init__(self, startup_time:float, program_version:str, app_logger:Logger):
+        intents = discord.Intents.default()
+        intents.messages = True
+        super().__init__(command_prefix=None, help_command=None, intents=intents)
+
+        self.startup_time = startup_time
+        self.PROGRAM_VERSION = program_version
+        self.__logger = app_logger
+
+    async def setup_hook(self):
+        # # Register cogs to handle commands
+        # for cog_name in ["debug", "post"]:
+        #     await self.load_extension(f"cogs.{cog_name}")
+        # await self.tree.sync()
+        pass
+
+    async def on_ready(self):
+        self.__logger.info(f"Successfully logged in (after {get_elapsed_time_small(datetime.now().timestamp() - self.startup_time)}) as {self.user}")