Macro custom_println

macro_rules! custom_println {
    ($prefix:literal, cyan, $($arg:tt)*) => { ... };
    ($prefix:literal, green, $($arg:tt)*) => { ... };
    ($prefix:literal, yellow, $($arg:tt)*) => { ... };
    ($prefix:literal, red, $($arg:tt)*) => { ... };
}

Allows for custom print messages with a specified prefix and color.

usage: custom_println!("prefix", color, "message") where color is one of cyan, green, yellow, or red. The prefix will be shown in bold in the specified color, followed by a colon and the message.