Function bbd_lib::decode_nrbt

pub fn decode_nrbt(c: char) -> u8

Translate a binary representation to u8 using the nrbt encoding

nrbt: most significant nibble right, most significant bit top

Left	Right
8	128
4	64
2	32
1	16

use bbd_lib::*;

assert_eq!(
    "\
        ⠀⡀⠄⡄⠂⡂⠆⡆⠁⡁⠅⡅⠃⡃⠇⡇⢀⣀⢄⣄⢂⣂⢆⣆⢁⣁⢅⣅⢃⣃⢇⣇⠠⡠⠤⡤⠢⡢⠦⡦⠡⡡⠥⡥⠣⡣⠧⡧⢠⣠⢤⣤⢢⣢⢦⣦⢡⣡⢥⣥⢣⣣⢧⣧\
        ⠐⡐⠔⡔⠒⡒⠖⡖⠑⡑⠕⡕⠓⡓⠗⡗⢐⣐⢔⣔⢒⣒⢖⣖⢑⣑⢕⣕⢓⣓⢗⣗⠰⡰⠴⡴⠲⡲⠶⡶⠱⡱⠵⡵⠳⡳⠷⡷⢰⣰⢴⣴⢲⣲⢶⣶⢱⣱⢵⣵⢳⣳⢷⣷\
        ⠈⡈⠌⡌⠊⡊⠎⡎⠉⡉⠍⡍⠋⡋⠏⡏⢈⣈⢌⣌⢊⣊⢎⣎⢉⣉⢍⣍⢋⣋⢏⣏⠨⡨⠬⡬⠪⡪⠮⡮⠩⡩⠭⡭⠫⡫⠯⡯⢨⣨⢬⣬⢪⣪⢮⣮⢩⣩⢭⣭⢫⣫⢯⣯\
        ⠘⡘⠜⡜⠚⡚⠞⡞⠙⡙⠝⡝⠛⡛⠟⡟⢘⣘⢜⣜⢚⣚⢞⣞⢙⣙⢝⣝⢛⣛⢟⣟⠸⡸⠼⡼⠺⡺⠾⡾⠹⡹⠽⡽⠻⡻⠿⡿⢸⣸⢼⣼⢺⣺⢾⣾⢹⣹⢽⣽⢻⣻⢿⣿\
    ".chars().map(|x| decode_nrbt(x)).collect::<Vec<u8>>(),
    (0..=255).collect::<Vec<u8>>(),
);