update doctype workflows and events for Sales Order creation from Quotation

custom_ui/install.py

@@ -169,6 +169,15 @@ def add_custom_fields():
                 options="Employee",
                 insert_after="status"
             )
+        ],
+        "Quotation": [
+            dict(
+                fieldname="requires_half_payment",
+                label="Requires Half Payment",
+                fieldtype="Check",
+                default=0,
+                insert_after="custom_installation_address"
+            )
         ]
     }