move has/dedup to util

src/experimental/_impl/_mz_hamiltonian_impl.scad

@@ -1,4 +1,4 @@
-use <experimental/has.scad>;
+use <util/has.scad>;
 
 function _mz_hamiltonian_upper(x, y) =
     let(

src/experimental/_impl/_px_surround_impl.scad

@@ -1,4 +1,4 @@
-use <experimental/has.scad>;
+use <util/has.scad>;
 
 function _px_surround_corner_value(pts, x, y) =
     let(

src/experimental/mz_hamiltonian.scad

@@ -1,7 +1,7 @@
 use <experimental/_impl/_mz_hamiltonian_impl.scad>;
 use <experimental/mz_blocks.scad>;
 use <experimental/mz_get.scad>;
-use <experimental/dedup.scad>;
+use <util/dedup.scad>;
 
 function mz_hamiltonian(rows, columns, start) =
     let(

src/experimental/px_polygon.scad

@@ -1,7 +1,7 @@
 use <in_shape.scad>;
 use <util/sort.scad>;
+use <util/dedup.scad>;
 use <pixel/px_polyline.scad>;
-use <experimental/dedup.scad>;
 
 function px_polygon(points) =
     let(

src/experimental/todo.txt

@@ -7,3 +7,5 @@
 Preview
 
 - sweep
+- util/has
+- util/dedup

src/util/_impl/_dedup_impl.scad

@@ -1,4 +1,4 @@
-use <experimental/has.scad>;
+use <util/has.scad>;
 
 function _dedup(src, dest, leng, i = 0) = 
     i == leng ? dest :

src/util/dedup.scad

@@ -1,3 +1,3 @@
-use <experimental/_impl/_dedup_impl.scad>;
+use <util/_impl/_dedup_impl.scad>;
 
 function dedup(lt) = _dedup(lt, [], len(lt));