Complete arc length dimension workflow

src/app/commands/dim.rs

@@ -55,6 +55,13 @@ impl OpenCADStudio {
                 self.tabs[i].active_cmd = Some(Box::new(new_cmd));
             }
 
+            "DIMARC" => {
+                use crate::modules::annotate::arc_length_dim::ArcLengthDimensionCommand;
+                let new_cmd = ArcLengthDimensionCommand::new();
+                self.command_line.push_info(&new_cmd.prompt());
+                self.tabs[i].active_cmd = Some(Box::new(new_cmd));
+            }
+
             "DIMORDINATE" => {
                 use crate::modules::annotate::ordinate_dim::OrdinateDimCommand;
                 let new_cmd = OrdinateDimCommand::new();