Merge the Land Unit doctype with the Location doctype (#14613)

* Merge Land Unit with the Location doctype

* Fix patch

* [minor] modification to Location structure

- Create a group node "All Land Units" and place all the land units
under it
- Remove "Linked Analysis" from location

erpnext/config/agriculture.py

@@ -16,7 +16,7 @@ def get_data():
 				},
 				{
 					"type": "doctype",
-					"name": "Land Unit",
+					"name": "Location"
 				}
 			]
 		},

erpnext/config/desktop.py

@@ -398,13 +398,13 @@ def get_data():
 			"hidden": 1
 		},
 		{
-			"module_name": "Land Unit",
-			"_doctype": "Land Unit",
-			"label": _("Land Unit"),
+			"module_name": "Location",
+			"_doctype": "Location",
+			"label": _("Location"),
 			"color": "#8BC34A",
 			"icon": "fa fa-map",
 			"type": "list",
-			"link": "List/Land Unit",
+			"link": "List/Location",
 			"hidden": 1
 		},
 		{