chore: add Quartus project with configured testbenches

chore: update gitignore for quartus project

fix(link): make testbenches work in quartus, fix old testbenches

chore: use vhdl2008 when compiling using ghdl

chore: update top entity to correct toplevel entity

feat(transport): add testbenches for transport layer

Simple 1 lane CF = 0, 1 lane CF = 1,
multi lane L = 2, CF = 2, M = 4, S = 2 (2 lanes, 2 control words, 4 conventers, 2 samples per frame)

fix(transport): multiply by number of bits in octet in current_buffered_data

fix: add generic data to transport layer

fix(transport): correctly parse data and control bits

feat(transport): add transport layer octets to samples conversion

fix(link): check that characters in ilas parser are control characters

ILAS parser did not check that characters are control characters,
error would be encountered if there was R or A non-kout character

fix(link): correctly change next_error when generation order

chore: fix formatting

feat(transport): add transport layer entity

feat: add jesd204b_rx toplevel entity

feat(link): add error handler entity for managing data link errors (lane misalignment, frame misalignment, not in table error, disparity error, unexpected character error)

feat(link): add counting of wrong sync characters on the same place in frame alignment

chore: add ignoring of undo-tree files created by emacs

fix: build sources that are in top of src/ directory

feat(descrambler): add descrambler entity