feat: CRM Settings (#27788)

* feat: crm settings

* feat: CRM Settings

* feat: lead and opprtunity section

* feat: added CRM Settings in ERPNext Settings workspace

* fix: review chnages

* added patch

* fix: linter issues

* fix: linter issues

* fix: linter issues

* fix: removed crm settings from selling module

* fix: raw query to frappe.qb

* fix: removed hardcoded value

* fix: linter issue

* fix: simplify CRM Settings migration patch

Co-authored-by: Anupam Kumar <anupam@Anupams-MacBook-Air.local>
Co-authored-by: Rucha Mahabal <ruchamahabal2@gmail.com>

erpnext/setup/workspace/erpnext_settings/erpnext_settings.json

@@ -10,7 +10,7 @@
  "idx": 0,
  "label": "ERPNext Settings",
  "links": [],
- "modified": "2021-10-26 21:32:55.323591",
+ "modified": "2021-11-05 21:32:55.323591",
  "modified_by": "Administrator",
  "module": "Setup",
  "name": "ERPNext Settings",
@@ -123,6 +123,13 @@
    "label": "Products Settings",
    "link_to": "Products Settings",
    "type": "DocType"
+  },
+  {
+   "doc_view": "",
+   "icon": "crm",
+   "label": "CRM Settings",
+   "link_to": "CRM Settings",
+   "type": "DocType"
   }
  ],
  "title": "ERPNext Settings"