feat: partially implement channel widths

Merge pull request #25 from Rutherther/feat/subclass-1-support

Add subclass 1 support

feat: allow changing align buffer size used in lane alignment

feat: pass synced only if lmfc is aligned after losing synchronization (subclass 1)

feat: change behavior of asserting link nsynced only on frame clk (subclass 0) and multiframe clk (subclass 1)

chore: add basic README

tets: pass ci_multiframe_clk to jesd204b_link_rx

feat: update multipoint testbench to work with subclass 1

fix: offset lmfc counter to align with sysref by default

feat: add RX_BUFFER_DELAY to multipoint link

fix: pass multiframe clk to data link layer

feat: start emptying lane aligned buffer only if not in CGS

fix: makde default RX buffer delay in bounds

fix: correct condition to generate start lanes for subclass 1

fix: deassert sync on LMFC falling edge to match the standard

feat: add basic subclass 1 support

feat: add lmfc counter clock generator

chore: specify ranges for all integers

Ranges are not needed inside of tesbenches.
Resolves #22.

feat: assume full synchronization after 4 correct 8b10b characters are received after 4 /K/ characters

Resolves #23.

feat: add multipoint link support