added 1st version lesson 3, source codes for lessons

lessons/contenu_cours_3.md

source_codes/refactor_with_functions/a.out

source_codes/refactor_with_functions/anagramme_refactored.c

...factor_with_functions/array_1D_init_find_min_refactored.c

...ce_codes/refactor_with_functions/chess_queen_refactored.c

...des/refactor_with_functions/chess_queen_refactored_part.c

...ce_codes/refactor_with_functions/eratosthene_refactored.c

...ce_codes/refactor_with_functions/factorielle_refactored.c

source_codes/refactor_with_functions/nb1er_refactored.c

source_codes/refactor_with_functions/palindrome_refactored.c

source_codes/refactor_with_functions/pgcd_refactored.c

source_codes/refactor_with_functions/ppcm_refactored.c

source_codes/refactor_with_functions/tri_select_refactored.c

...odes/refactor_with_functions/tri_select_refactored_part.c

...ce_codes/refactor_with_functions/tri_select_to_refactor.c

source_codes/tableaux_1d/anagramme.c

source_codes/tableaux_1d/array_1D_init_find_min.c

source_codes/tableaux_1d/eratosthene.c

source_codes/tableaux_1d/palindrome.c

source_codes/tableaux_1d/tri_select.c