[e-acsl:archi] merge stages 'prepare_ast' and 'dup_functions'

src/plugins/e-acsl/Makefile.in

src/plugins/e-acsl/src/main.ml

src/plugins/e-acsl/src/options.ml

src/plugins/e-acsl/src/options.mli

src/plugins/e-acsl/src/project_initializer/dup_functions.ml

src/plugins/e-acsl/src/project_initializer/dup_functions.mli

src/plugins/e-acsl/src/project_initializer/prepare_ast.ml

src/plugins/e-acsl/src/project_initializer/prepare_ast.mli