As discussed in #1370, the `u8` suffix has been chosen for Byte literal values, this PR introduces it in the compiler
NOTE: Depends on #1403 for integration
Pull-Request: #1410
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>
Reviewed-by: Romain Chanoir <chanoir.romain@courrier.uqam.ca>
Reviewed-by: Jean Privat <jean@pryen.org>