added donate.py to show donation link and donors

extensions/donate.py

@@ -0,0 +1,50 @@
+#plugin to show message count as a graph
+import os
+import time
+import matplotlib.pyplot as plt
+import discord
+from discord.ext import commands
+
+
+class Donate(commands.Cog):
+
+    def __init__(self, bot):
+        self.bot = bot
+        self.donation_link = "https://patreon.com/soullesssurvival"
+        self.data_dir = "data/donate/"
+        self.donor_file = "data/donate/supporters.txt"
+        self.folder_setup()
+
+    def folder_setup(self):
+        try:
+            if not os.path.exists(self.data_dir):
+                os.mkdir(self.data_dir)
+        except:
+            self.bot.logger.exception("Donate failed to make directories")
+
+    @commands.command(
+        description="Donate", 
+        help="Get information on how to donate to support this bot.", 
+        brief="Donation info",
+        ) 
+    async def donate(self, ctx):
+        await ctx.send(f"If you would like to support the future of this bot please consider donating here: {self.donation_link}")
+
+    @commands.command(
+        description="Supporters", 
+        help="Get information on who supports this bot.", 
+        brief="Supporter info",
+        aliases = ["supporter"]
+        ) 
+    async def supporters(self, ctx):
+        with open(self.donor_file, 'r') as f:
+            supporters = f.readlines()
+        message = "Thank you to the following supporters:\n"
+        for line in supporters:
+            message += line
+
+        await ctx.send(message)
+
+
+async def setup(bot):
+    await bot.add_cog(Donate(bot))