[added] hospitality domain (#11020)

* [added] hospitality domain

* [tests] wip

* [tests] for restaurant

* [fix] tests for new naming

* [docs] added restaurant docs

* [docs] added restaurant docs

erpnext/domains/services.py

@@ -0,0 +1,22 @@
+data = {
+	'desktop_icons': [
+		'Project',
+		'Timesheet',
+		'Customer',
+		'Sales Order',
+		'Sales Invoice',
+		'CRM',
+		'Task',
+		'Expense Claim',
+		'Employee',
+		'HR',
+		'ToDo'
+	],
+	'properties': [
+		{'doctype': 'Item', 'fieldname': 'is_stock_item', 'property': 'default', 'value': 0},
+	],
+	'set_value': [
+		['Stock Settings', None, 'show_barcode_field', 0]
+	],
+	'default_portal_role': 'Customer'
+}