moved code around to make smallut and pathut less recoll-specific and reusable. No actual changes

src/index/beaglequeue.cpp

@@ -23,6 +23,7 @@
 
 #include "cstr.h"
 #include "pathut.h"
+#include "rclutil.h"
 #include "debuglog.h"
 #include "fstreewalk.h"
 #include "beaglequeue.h"

src/index/fsindexer.cpp

@@ -28,6 +28,7 @@
 
 #include "cstr.h"
 #include "pathut.h"
+#include "rclutil.h"
 #include "conftree.h"
 #include "rclconfig.h"
 #include "fstreewalk.h"

src/index/recollindex.cpp

@@ -42,6 +42,7 @@ using namespace std;
 #include "smallut.h"
 #include "chrono.h"
 #include "pathut.h"
+#include "rclutil.h"
 #include "rclmon.h"
 #include "x11mon.h"
 #include "cancelcheck.h"