Initial orjson support take 3 (#73849)

* Initial orjson support take 2

Still need to work out problem building wheels

--

Redux of #72754 / #32153 Now possible since the following is solved:
ijl/orjson#220 (comment)

This implements orjson where we use our default encoder.  This does not implement orjson where `ExtendedJSONEncoder` is used as these areas tend to be called far less frequently.  If its desired, this could be done in a followup, but it seemed like a case of diminishing returns (except maybe for large diagnostics files, or traces, but those are not expected to be downloaded frequently).

Areas where this makes a perceptible difference:
- Anything that subscribes to entities (Initial subscribe_entities payload)
- Initial download of registries on first connection / restore
- History queries
- Saving states to the database
- Large logbook queries
- Anything that subscribes to events (appdaemon)

Cavets:
orjson supports serializing dataclasses natively (and much faster) which
eliminates the need to implement `as_dict` in many places
when the data is already in a dataclass. This works
well as long as all the data in the dataclass can also
be serialized. I audited all places where we have an `as_dict`
for a dataclass and found only backups needs to be adjusted (support for `Path` needed to be added for backups).  I was a little bit worried about `SensorExtraStoredData` with `Decimal` but it all seems to work out from since it converts it before it gets to the json encoding cc @dgomes

If it turns out to be a problem we can disable this
with option |= [orjson.OPT_PASSTHROUGH_DATACLASS](https://github.com/ijl/orjson#opt_passthrough_dataclass) and it
will fallback to `as_dict`

Its quite impressive for history queries
<img width="1271" alt="Screen_Shot_2022-05-30_at_23_46_30" src="https://user-images.githubusercontent.com/663432/171145699-661ad9db-d91d-4b2d-9c1a-9d7866c03a73.png">

* use for views as well

* handle UnicodeEncodeError

* tweak

* DRY

* DRY

* not needed

* fix tests

* Update tests/components/http/test_view.py

* Update tests/components/http/test_view.py

* black

* templates

homeassistant/components/websocket_api/connection.py

@@ -11,6 +11,7 @@ import voluptuous as vol
 from homeassistant.auth.models import RefreshToken, User
 from homeassistant.core import Context, HomeAssistant, callback
 from homeassistant.exceptions import HomeAssistantError, Unauthorized
+from homeassistant.helpers.json import JSON_DUMP
 
 from . import const, messages
 
@@ -56,7 +57,7 @@ class ActiveConnection:
     async def send_big_result(self, msg_id: int, result: Any) -> None:
         """Send a result message that would be expensive to JSON serialize."""
         content = await self.hass.async_add_executor_job(
-            const.JSON_DUMP, messages.result_message(msg_id, result)
+            JSON_DUMP, messages.result_message(msg_id, result)
         )
         self.send_message(content)