Updated "Toggle nets" dropdown

Updated the toggle options to Cluster Nets and Primitive Nets from Nets and Logical Connections respectively.

Author: Meet-Patel2580

vpr/main.ui

@@ -316,8 +316,8 @@
             <property name="active_id">0</property>
             <items>
               <item id="0" translatable="yes">None</item>
-              <item id="1" translatable="yes">Nets</item>
-              <item id="2" translatable="yes">Logical Connections</item>
+              <item id="1" translatable="yes">Cluster Nets</item>
+              <item id="2" translatable="yes">Primitive Nets</item>
             </items>
           </object>
           <packing>

vpr/src/draw/draw.cpp

@@ -224,21 +224,21 @@ static void draw_main_canvas(ezgl::renderer* g) {
 
     if (draw_state->pic_on_screen == PLACEMENT) {
         switch (draw_state->show_nets) {
-            case DRAW_NETS:
+            case DRAW_CLUSTER_NETS:
                 drawnets(g);
                 break;
-            case DRAW_LOGICAL_CONNECTIONS:
+            case DRAW_PRIMITIVE_NETS:
                 break;
             default:
                 break;
         }
     } else { /* ROUTING on screen */
 
         switch (draw_state->show_nets) {
-            case DRAW_NETS:
+            case DRAW_CLUSTER_NETS:
                 drawroute(ALL_NETS, g);
                 break;
-            case DRAW_LOGICAL_CONNECTIONS:
+            case DRAW_PRIMITIVE_NETS:
                 // fall through
             default:
                 draw_rr(g);

vpr/src/draw/draw_toggle_functions.cpp

@@ -80,10 +80,10 @@ void toggle_nets_cbk(GtkComboBox* self, ezgl::application* app) {
     // assign corresponding enum value to draw_state->show_nets
     if (strcmp(setting, "None") == 0)
         new_state = DRAW_NO_NETS;
-    else if (strcmp(setting, "Nets") == 0) {
-        new_state = DRAW_NETS;
-    } else { // "Logical Connections"
-        new_state = DRAW_LOGICAL_CONNECTIONS;
+    else if (strcmp(setting, "Cluster Nets") == 0) {
+        new_state = DRAW_CLUSTER_NETS;
+    } else { // Primitive Nets - Used to be called "Logical Connections"
+        new_state = DRAW_PRIMITIVE_NETS;
     }
     draw_state->reset_nets_congestion_and_rr();
     draw_state->show_nets = new_state;

vpr/src/draw/draw_types.h

@@ -45,8 +45,8 @@ enum e_draw_crit_path {
 
 enum e_draw_nets {
     DRAW_NO_NETS = 0,
-    DRAW_NETS,
-    DRAW_LOGICAL_CONNECTIONS
+    DRAW_CLUSTER_NETS,
+    DRAW_PRIMITIVE_NETS
 };
 
 /* Draw rr_graph from less detailed to more detailed