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/include/distroutils.h

@@ -0,0 +1,23 @@
+#include "sys.h"
+#include <QString>
+
+namespace Sys {
+struct LsbInfo
+{
+	QString distributor;
+	QString version;
+	QString description;
+	QString codename;
+};
+
+bool main_lsb_info(LsbInfo & out);
+bool fallback_lsb_info(Sys::LsbInfo & out);
+void lsb_postprocess(Sys::LsbInfo & lsb, Sys::DistributionInfo & out);
+Sys::DistributionInfo read_lsb_release();
+
+QString _extract_distribution(const QString & x);
+QString _extract_version(const QString & x);
+Sys::DistributionInfo read_legacy_release();
+
+Sys::DistributionInfo read_os_release();
+}