PTHL (TC-0), Naive Scanner and Parser

TC-0 is no longer used as the introduction stage for this project.

This section has been updated for EPITA-2021 on 2020-02-07.

TC-0 is a weak form of TC-1: the scanner and the parser are written, but the framework is simplified (TC-1 Code to Write). The grammar is also simpler: object-related productions are not to be supported at this stage (PTHL Improvements}). No command line option is supported.