Giveaway command

[ecsr]

An admin command for creating giveaways. Discord modals can be used to input all the giveaway information (description, emoji to react with, time limit, game key and optional image).

• Create a new giveaway /giveaway.
• Bot sends giveaway message.
• Users can enter the giveaway by reacting with the specified emoji.
• Once the time limit has passed the bot picks a random user from reactions and sends game key via private message.

[zeltim1]

I'll do this one