opc-ua/open62541: CDP's fork of the open62541 OPC UA stack (https://github.com/open62541/open62541) @ 27b6c4b30db86b2335f264e36a26f0ee8dd5b98e

Julius Pfrommer 9dd20578a6 use NULL instead of UA_NULL; don't rename standard C functions; provide minimal replacements for libc on embedded targets		9 anni fa
..
libc_string.c	9dd20578a6 use NULL instead of UA_NULL; don't rename standard C functions; provide minimal replacements for libc on embedded targets	9 anni fa
pcg_basic.c	339562f6ff add missing pcg_basic.c and pcg_basic.h	9 anni fa
pcg_basic.h	339562f6ff add missing pcg_basic.c and pcg_basic.h	9 anni fa
queue.h	a603409a5e reset queue.h to the original state and do the undef SLIST_ENTRY outside	9 anni fa