Point clouds: POINTCLOUDCOLORMAP dialog, out-of-range colouring

POINTCLOUDCOLORMAP asks for a cloud (or None for the drawing's default
schemes) and opens the Point Cloud Color Map dialog: intensity and
elevation tabs with the scheme list, New / Delete / Rename, number of
colours (2-25, resampled along the scheme), blend between the ends,
reverse, gradient or bands, the colorized range, the out-of-range
choice and, for elevation, the cloud's extents or a fixed range with its
band height. OK / Apply write the drawing's colour map (created under
ACAD_POINTCLOUD_COLORMAP_DICT when missing) and the cloud's colouring in
one undo step; Make stylization current sets the tab's stylization.
Values outside a scheme's range take the end colours, the scan colours
or are hidden. Automation action pc_colormap edits the dialog.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/commands/mod.rs

@@ -15,6 +15,7 @@ mod layerprops;
 mod layers;
 pub(crate) mod pdf_import;
 mod point_cloud;
+mod pc_colormap;
 mod pc_extract;
 mod pdf_underlay;
 mod pdf_dialogs;
@@ -271,6 +272,9 @@ impl OpenCADStudio {
         if let Some(t) = self.dispatch_pdf_underlay(cmd, i) {
             return Some(t);
         }
+        if let Some(t) = self.dispatch_pc_colormap(cmd, i) {
+            return Some(t);
+        }
         if let Some(t) = self.dispatch_pc_extract(cmd, i) {
             return Some(t);
         }