revert include directive, add additional include path instead

Author: jankae

Software/LibreCAL-GUI/LibreCAL-GUI.pro

@@ -32,7 +32,7 @@ SOURCES += \
 LIBS += -lusb-1.0
 unix:LIBS += -L/usr/lib/
 win32:LIBS += -L"$$_PRO_FILE_PWD_" # Github actions placed libusb here
-osx:INCPATH += /usr/local/include
+osx:INCPATH += /usr/local/include /usr/local/lib
 osx:LIBS += -L/usr/local/lib $(shell pkg-config --libs libusb-1.0)
 
 # libusb-1.0.23 shall be extracted in same directory as this file

Software/LibreCAL-GUI/Util/usbinbuffer.h

@@ -1,7 +1,7 @@
 #ifndef USBINBUFFER_H
 #define USBINBUFFER_H
 
-#include <libusb.h>
+#include <libusb-1.0/libusb.h>
 #include <condition_variable>
 
 #include <QObject>

Software/LibreCAL-GUI/usbdevice.h

@@ -3,7 +3,7 @@
 
 #include "Util/usbinbuffer.h"
 
-#include <libusb.h>
+#include <libusb-1.0/libusb.h>
 #include <QString>
 #include <set>
 #include <functional>