Reg [dev]: cmake: Qt Designer Plugins are build statically

Processing CMakeLists.txt
Running cmake -H../customwidgetplugin -G Ninja
-- The CXX compiler identification is GNU 9.3.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for C++ include pthread.h
-- Looking for C++ include pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - yes
-- Found Threads: TRUE  
-- Performing Test HAVE_STDATOMIC
-- Performing Test HAVE_STDATOMIC - Success
-- Found WrapAtomic: TRUE  
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so   
-- Found WrapOpenGL: TRUE  
-- Found Vulkan: /usr/lib/x86_64-linux-gnu/libvulkan.so  
-- Found XKB: /usr/lib/x86_64-linux-gnu/libxkbcommon.so (found suitable version "0.10.0", minimum required is "0.5.0") 
-- Configuring done
-- Generating done
-- Build files have been written to: ....dev/qt-dev/qttools/examples/designer/customwidgetplugin_62
Running ninja
[5/5] Linking CXX static library libcustomwidgetplugin.a