Add the Ability to Retrieve a List of Notifications

[Travis-Owens]

Add the ability to retrieve a list of Twitch/YouTube notifications on a per channel basis.

Example usage:

• k!list youtube - Responds with a list of YouTube channels
• k!list twitch - Responds with a list of twitch channels
• k!list - Responds with both list

Ideas:

• Use message embed
• Explore the possibility of listing all notifications for a given guild.
• Provide command usage on removing a notification

Example Output:

Code:

        embed = discord.Embed(title="", colour=discord.Colour(0xd06412))
        embed.set_author(name="KeshBotics", url="https://discordapp.com", icon_url="")

        embed.add_field(name="Twitch Notifications", value="Channel 1\nChannel 2\n Channel 3", inline=False)

        await ctx.send(content="", embed=embed)