py: Implement bit-shift and not operations for mpz.

Implement not, shl and shr in mpz library.  Add function to create mpzs
on the stack, used for memory efficiency when rhs is a small int.
Factor out code to parse base-prefix of number into a dedicated function.

1 files changed, 1 insertions, 0 deletions

diff --git a/py/parsenumbase.h b/py/parsenumbase.h
new file mode 100644
index 0000000000..483596e329
--- /dev/null
+++ b/py/parsenumbase.h
@@ -0,0 +1 @@
+int mp_parse_num_base(const char *str, uint len, int *base);