[E-ACSL] configure the memory model's C library with the Frama-C's machdep

src/plugins/e-acsl/main.ml

...plugins/e-acsl/share/e-acsl/memory_model/e_acsl_bittree.c

...gins/e-acsl/share/e-acsl/memory_model/e_acsl_mmodel_api.h

...gins/e-acsl/tests/e-acsl-reject/oracle/quantif.res.oracle

...ns/e-acsl/tests/e-acsl-runtime/oracle/addrOf.1.res.oracle

...gins/e-acsl/tests/e-acsl-runtime/oracle/addrOf.res.oracle

...ins/e-acsl/tests/e-acsl-runtime/oracle/arith.1.res.oracle

...ugins/e-acsl/tests/e-acsl-runtime/oracle/arith.res.oracle

...ins/e-acsl/tests/e-acsl-runtime/oracle/array.1.res.oracle

...ugins/e-acsl/tests/e-acsl-runtime/oracle/array.res.oracle

...lugins/e-acsl/tests/e-acsl-runtime/oracle/at.1.res.oracle

src/plugins/e-acsl/tests/e-acsl-runtime/oracle/at.res.oracle

...s/e-acsl/tests/e-acsl-runtime/oracle/bts1304.1.res.oracle

...ins/e-acsl/tests/e-acsl-runtime/oracle/bts1304.res.oracle

...s/e-acsl/tests/e-acsl-runtime/oracle/bts1307.1.res.oracle

...ins/e-acsl/tests/e-acsl-runtime/oracle/bts1307.res.oracle

...s/e-acsl/tests/e-acsl-runtime/oracle/bts1324.1.res.oracle

...ins/e-acsl/tests/e-acsl-runtime/oracle/bts1324.res.oracle

...s/e-acsl/tests/e-acsl-runtime/oracle/bts1326.1.res.oracle

...ins/e-acsl/tests/e-acsl-runtime/oracle/bts1326.res.oracle