www/domoticz: Update to 2020.2

• Make LUA as hard dependency as internal LUA is not supported anymore
• Make OPENZWAVE optional dependency
• Enable usage of precompiled headers by default to follow the upstream
• Use GH_TUPLE to load external dependencies from the github (upstream uses git submodules), disable GIT_SUBMODULE. As for now only MQQT is supported
• Fix CMAKE_INSTALL_PREFIX (should be specified as Makefile option, not as CMAKE one) and remove patches obsoleted by that fix
• USE CMAKE_ON/CMAKE_OFF for the better readability
• Remove post-patch target, as version is normally set by the cmake itself
• Include patches for the embedded mosquitto, disable mosquitto shared libraries installation
• Update pkg-plist to support files added by the embedded dependencies
• Remove CONFLICTS as there are no such matched packages in the ports tree
• Fix build without PYTHON, patch accepted by the upstream
• Remove most of the STATIC* options

ChangeLog: https://github.com/domoticz/domoticz/blob/development/History.txt
PR: 245007
Approved by: krion (mentor)
Differential Revision: https://reviews.freebsd.org/D24984