Support white spaces in project path

[SamSandq]

I wanted to added some resource images to my application, and proceeded as the documentation says:

• added a directory under .../res/, giving .../res/res_images
• changed the CMakeLists.txt file in the main project directory to

nap_desktop_app(Funtus "" NRC_EMBEDDED)
target_link_libraries(Funtus ${NAPPGUI_LIBRARIES} "-l sqlite3")

• and ran cmake -G Xcode -S . -B build -DCMAKE_INSTALL_PREFIX=/Users/sam/nappgui

This FAILED with the following error:

I was mystified, but had a hunch that it didn't properly find my files. And... I changed my source directory from nappgui projectsto nappgui_projects. The result was the following:

In other words, either CMake or nrc does not allow spaces in directory names!

Please ascertain which, and correct.

[frang75]

NAppGUI projects have never been tested with whitespaces or Unicode characters in path.