Adds a new cryptocurrency price follow configuration to the server.
Description: Cryptocurrency to add price update for.
Valid Inputs: Symbol or name of a valid cryptocurrency.
Argument Examples: btc ETH litecoin
Description: The base currency to display the crypto price against.
Valid Inputs: Valid fiat code, or symbol of one of the few major cryptos supported as base currencies.
Default: usd
Argument Examples: eur TRY btc
Description: How often to send a price update.
Valid Inputs: Valid time (number followed by d h m s).
Argument Examples: 1h 30m 3d
Description: Channel for the alert to be sent in.
Input: Name or Discord ID of the channel.
