python: Rename private functions.
Avoid the name pygpgme, as this is the name of another popular Python
binding for GPGME.
This commit renames all functions that are not exported to the Python
world.
- lang/python/gpgme.i: Rename all private functions.
- lang/python/helpers.c: Likewise.
- lang/python/helpers.h: Likewise.
- lang/python/private.h: Likewise. Also move the SWIG runtime helper
prototypes here.
- Signed-off-by: Justus Winter <justus@g10code.com>