Add shape declaration (#1962)

* Add support for the point field

* add shape field, remove unnecessary point examples

* add missing Shape declaration

---------

Co-authored-by: Hüseyin Emre Armağan <[email protected]>

Author: miguelgrinberg

elasticsearch_dsl/__init__.py

@@ -73,6 +73,7 @@
     RankFeatures,
     ScaledFloat,
     SearchAsYouType,
+    Shape,
     Short,
     SparseVector,
     Text,
@@ -183,6 +184,7 @@
     "ScaledFloat",
     "Search",
     "SearchAsYouType",
+    "Shape",
     "Short",
     "SparseVector",
     "TermsFacet",