Function encode 

pub fn encode(raw_buffer: &[u8]) -> Result<Vec<u8>, SlipError>

Encodes data following the SLIP protocol.

Given a buffer of unencoded data, this data will be encoded following the SLIP protocol, allocated into a new Vec<u8>, and returned to the calling scope.

Example:

use simple_slip::encode;

let input: Vec<u8> = vec![0x01, 0xDB, 0x49, 0xC0, 0x15];
let expected: Vec<u8> = vec![0xC0, 0x01, 0xDB, 0xDD, 0x49, 0xDB, 0xDC, 0x15, 0xC0];

let result: Vec<u8> = encode(&input).unwrap();

assert_eq!(result, expected);