NOISSUE add linux distro name and release stats to analytics

Hopefully this can serve as some sort of guideline for focusing
effort towards the right distro packages to make.

libraries/systeminfo/CMakeLists.txt

@@ -4,6 +4,8 @@ find_package(Qt5Core)
 
 set(systeminfo_SOURCES
 include/sys.h
+include/distroutils.h
+src/distroutils.cpp
 )
 
 if (WIN32)