Merge branch 'extract-headers' into 'master'

.gitattributes

bench/bench

drivers/c.drv

examples/multiprecision/.gitignore

examples/multiprecision/Makefile

examples/multiprecision/bench-include/config.h

examples/multiprecision/bench-include/fac_table.h

examples/multiprecision/bench-include/fib_table.h

examples/multiprecision/bench-include/gmp-impl.h

examples/multiprecision/bench-include/gmp-mparam.h

examples/multiprecision/bench-include/gmp.h

examples/multiprecision/bench-include/gmpxx.h

examples/multiprecision/bench-include/longlong.h

examples/multiprecision/bench-include/mp_bases.h

examples/multiprecision/bench-include/trialdivtab.h

examples/multiprecision/mini-gmp/mini-gmp.c

examples/multiprecision/mini-gmp/mini-gmp.h

examples/multiprecision/random/mt19937-64.c

examples/multiprecision/tests.c

src/core/printer.ml