Make Bot respond to replies and mentions from user

[pistonpro0001]

Add a function to make bot respond any message to replies or mentions with the bot.event decorator.

[roli2py]

Why are we need this functionality?

[pistonpro0001]

I had seen other discord bots do similar things, so I thought it would be good to add.

[roli2py]

I had seen other discord bots do similar things, so I thought it would be good to add.

OK. Then I propose to make a hash table where keys is the type and values is an array of the answers to make it more interesting. Also, we can implement detecting of the characters like "?" or "!" to change a type of the answer.

[pistonpro0001]

OK. Then I propose to make a hash table where keys is the type and values is an array of the answers to make it more interesting. Also, we can implement detecting of the characters like "?" or "!" to change a type of the answer.

I will use a hash table, but I feel that the implementing of the characters should be a later issue/PR.