First attempt at porting app_python to app_python3.

Mostly symbols names are the same as app_python so these two modules cannot be loaded together. Exported functions are identical so in theory scripts need not change.

TODO: reenable thread management

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#### Description - add app_python3 module - this is a direct port of app_python and aims for feature equivalence - script reload does not work yet - disable thread management; fortunately kamailio does not use threads; as the Py3 API is too different; trying to avoid deprecated APIs like PyEval_AcquireLock(). - TODO: need to reenable threads: use case is python extension module that uses native threads (e.g. gRPC)

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/1447

-- Commit Summary --

* app_python3: first release

-- File Changes --

A src/modules/app_python3/Makefile (29) A src/modules/app_python3/README (196) A src/modules/app_python3/README.TestCase-Loggers (16) A src/modules/app_python3/app_python_mod.c (532) A src/modules/app_python3/app_python_mod.h (31) A src/modules/app_python3/apy_kemi.c (1292) A src/modules/app_python3/apy_kemi.h (40) A src/modules/app_python3/apy_kemi_export.c (9288) A src/modules/app_python3/apy_kemi_export.h (42) A src/modules/app_python3/doc/Makefile (4) A src/modules/app_python3/doc/app_python.xml (34) A src/modules/app_python3/doc/app_python_admin.xml (212) A src/modules/app_python3/mod_Core.c (80) A src/modules/app_python3/mod_Core.h (36) A src/modules/app_python3/mod_Logger.c (271) A src/modules/app_python3/mod_Logger.h (37) A src/modules/app_python3/mod_Ranks.c (109) A src/modules/app_python3/mod_Ranks.h (35) A src/modules/app_python3/mod_Router.c (100) A src/modules/app_python3/mod_Router.h (36) A src/modules/app_python3/msgobj_struct.h (36) A src/modules/app_python3/python_examples/Loggers.py (107) A src/modules/app_python3/python_examples/TestCase_Traceback.py (46) A src/modules/app_python3/python_examples/handler.py (26) A src/modules/app_python3/python_exec.c (211) A src/modules/app_python3/python_exec.h (37) A src/modules/app_python3/python_iface.c (54) A src/modules/app_python3/python_iface.h (30) A src/modules/app_python3/python_msgobj.c (545) A src/modules/app_python3/python_msgobj.h (33) A src/modules/app_python3/python_support.c (277) A src/modules/app_python3/python_support.h (37) A src/modules/app_python3/utils/app_python_ctl (148)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1447.patch https://github.com/kamailio/kamailio/pull/1447.diff