fix: remove asynchronous if from frame_alignment

chore: rename some ports and generics to better match function

chore: specify ranges for all integers

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

feat: update jesd204b_rx to new frame clock

Merge pull request #14 from Rutherther/feat/add-frame-clock

Add frame clock handling

feat: make frame alignment output aligned octets in frames instead of octets

feat: rewrite frame alignment to use ring buffer

chore: add documentation to the code

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

feat(link): output frame_character from data link, add user_data to character

feat(link): wait for K character in frame alignment before setting aligned

feat(link): add frame alignment