Merge branch 'master' of gitlab.lif.univ-mrs.fr:alexis.nasr/macaon2

maca_common/include/mcd.h

maca_common/include/word.h

maca_common/include/word_buffer.h

maca_common/src/mcd.c

maca_common/src/word_buffer.c

maca_tokenizer/src/maca_tokenizer_functions_for_lex.c

maca_tools/src/json2mcf.c

maca_tools/src/mcf2json.c