Zabbix

.......... [DEV-762] made zbxcommon independent on any other zabbix library

* commit '99ed746a1b1508a6a0ab8c44f99b5cfe68de3b9e': (26 commits)
  .......... [DEV-762] changed argument order for zbx_print_help()
  .......... [DEV-762] changed argument order for zbx_print_usage()
  .......... [DEV-762] added null check safeguard for backtrace_cb()
  .......... [DEV-762] updated comment
  .......... [DEV-762] moved test_zbxcommon to tests directory
  .......... [DEV-762] fixed Windows build
  .......... [DEV-762] renamed zbxbincommon to zbxaux
  .......... [DEV-762] removed THIS_SHOULD_NEVER_HAPPEN_NO_BACKTRACE
  .......... [DEV-762] restored THIS_SHOULD_NEVER_HAPPEN macro and instead created new wrapper zbx_this_should_never_happen_backtrace() function
  .......... [DEV-762] removed commented code
  .......... [DEV-762] updated variables namings in makefile to make them more consistent
  .......... [DEV-762] updated zbxcommshigh
  .......... [DEV-762] updated regexp and json cmocka
  .......... [DEV-762] updated comms cmocka
  .......... [DEV-762] updated cfg cmocka
  .......... [DEV-762] updated file cmocka
  .......... [DEV-762] removed now-redundant COMMON_LIB_DEPS macro
  .......... [DEV-762] fixed zbxalgo cmocka makefile
  .......... [DEV-762] fixed Zabbix agent 2 and Windows build 5
  .......... [DEV-762] fixed Zabbix agent 2 and Windows build 4
  ...