Add config flow to iCloud (#28968)

* iCloud: setup ConfigFlow and prepare for more platforms

- add config flow + tests
- fix existing services
- add play_sound & display_message services
- document services
- can use devices with the same name
- prepare to add sensor platform

* Review : not copy account conf

* Review: Safer test patch

* Review: remove reset_account

* Review: Use executor_job while IO

* Review: Use executor_job while IO 2

* Review: use hass.helpers.storage.Store()

* Review: no IO in tests

* Remove reset from services.yaml

* Review: remove authenticate.return_value = Mock()

* Review: do not initialize the api with the mocked service

* isort

* Review: @MartinHjelmare Test config flow with all steps

* Review: Fix failed tests names

* Codevov: Add one missing test

.coveragerc

@@ -319,7 +319,8 @@ omit =
     homeassistant/components/iaqualink/light.py
     homeassistant/components/iaqualink/sensor.py
     homeassistant/components/iaqualink/switch.py
-    homeassistant/components/icloud/*
+    homeassistant/components/icloud/__init__.py
+    homeassistant/components/icloud/device_tracker.py
     homeassistant/components/izone/climate.py
     homeassistant/components/izone/discovery.py
     homeassistant/components/izone/__init__.py

CODEOWNERS

@@ -152,6 +152,7 @@ homeassistant/components/huawei_lte/* @scop
 homeassistant/components/huawei_router/* @abmantis
 homeassistant/components/hue/* @balloob
 homeassistant/components/iaqualink/* @flz
+homeassistant/components/icloud/* @Quentame
 homeassistant/components/ign_sismologia/* @exxamalte
 homeassistant/components/incomfort/* @zxdavb
 homeassistant/components/influxdb/* @fabaff

homeassistant/components/icloud/.translations/en.json

@@ -0,0 +1,38 @@
+{
+    "config": {
+        "abort": {
+            "username_exists": "Account already configured"
+        },
+        "error": {
+            "login": "Login error: please check your email & password",
+            "send_verification_code": "Failed to send verification code",
+            "username_exists": "Account already configured",
+            "validate_verification_code": "Failed to verify your verification code, choose a trust device and start the verification again"
+        },
+        "step": {
+            "trusted_device": {
+                "data": {
+                    "trusted_device": "Trusted device"
+                },
+                "description": "Select your trusted device",
+                "title": "iCloud trusted device"
+            },
+            "user": {
+                "data": {
+                    "password": "Password",
+                    "username": "Email"
+                },
+                "description": "Enter your credentials",
+                "title": "iCloud credentials"
+            },
+            "verification_code": {
+                "data": {
+                    "verification_code": "Verification code"
+                },
+                "description": "Please enter the verification code you just received from iCloud",
+                "title": "iCloud verification code"
+            }
+        },
+        "title": "Apple iCloud"
+    }
+}