[sr-dev] [kamailio/kamailio] Def psevdo 5.2 (#1893)

That is back port of https://github.com/kamailio/kamailio/pull/1814 Kazoo still use 5.0/5.1 branch

I expect if created backport into 5.1 branch, than backport to 5.2 also need. You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/1893

-- Commit Summary --

* core: allow pvar resolve in subsdef * core: allow pp_define_get to be used by modules * pv: add $def pseudo variable

-- File Changes --

M src/core/cfg.lex (4) M src/core/ppcfg.c (4) M src/modules/pv/pv.c (2) M src/modules/pv/pv_core.c (25) M src/modules/pv/pv_core.h (3)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1893.patch https://github.com/kamailio/kamailio/pull/1893.diff