[MIG][REF] web_advanced_search: Rename, refactor, migrate

* Complete migration to v11
* Refactor to use the new v11 decoupled widgets system
* Advanced search is now a high-level feature from the filters menu; it simplifies code a lot, and the UX is even better
* Split README system
* Add fun to ROADMAP
* Addon is renamed to web_advanced_search, since it enhaces the searching experience for all kind of fields now

web_advanced_search/__manifest__.py

@@ -0,0 +1,27 @@
+# Copyright 2015 Therp BV <http://therp.nl>
+# Copyright 2017 Tecnativa - Vicent Cubells
+# Copyright 2018 Tecnativa - Jairo Llopis
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Advanced search",
+    "version": "11.0.1.0.0",
+    "author": "Therp BV, "
+              "Tecnativa, "
+              "Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "category": "Usability",
+    "summary": "Easier and more powerful searching tools",
+    "website": "https://github.com/OCA/web",
+    "depends": [
+        'web',
+    ],
+    "data": [
+        'views/templates.xml',
+    ],
+    "qweb": [
+        'static/src/xml/web_advanced_search.xml',
+    ],
+    "installable": True,
+    "application": False,
+}