chore: add gitignore

feat(link): add frame alignment test bench

feat(link): add frame alignment

feat(link): add char alignment test bench

feat(link): add 8b10b decoder testbench

fix(link): decode control characters correctly. Correctly check for missing disparity

feat(link): auto testing testbench for char alignment

feat(link): add 8b10b decoder

feat(link): add char alignment

Initial commit