chore: specify ranges for all integers

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

fix: set user_data inside of lane_alignment even if ithe buffer is not released yet

 feat: change alignment character of lane_alignment from /A/ to /R/

 Resolves #19

fix(lane_alignment): set user data for a character based on state WHILST character is received

User data should be true for data from converters (or sometimes test mode data).
Before, user data were set upon outputting data from the buffer,
but that led to cases where ILAS sequence was counted
as user_data, because it was saved without information about
state of the character and it was assumed the state is the same
upon saving and outputting the octet.

feat: move all link configuration to generic instead of ports

Configuration is same for one compilation, it cannot change.
Thus it does not make sense to be a port.
Resolves #13.

fix(lane): output user_data based on current link state in lane_alignment

chore: add documentation to the code

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

fix(link): correctly change next_error when generation order

chore: fix formatting

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

feat(link): add lane alignment