Add Ondilo ico integration (#44728)

* First implementationof Ondilo component support

* Update manifest toadd pypi pkg dependency

* Update entities name and corrected refresh issue

* Changed percentage unit name

* Corrected merge issues

* Updated coveragerc

* cleaned up code and corrected config flow tests

* Code cleanup and added test for exisitng entry

* Changes following PR comments:
- Inherit CoordinatorEntity instead of Entity
- Merged pools blocking calls into one
- Renamed devices vars to sensors
- Check supported sensor types
- Stop relying on array index position for pools
- Stop relying on attribute position in dict for sensors

* Corrected unit test

* Reformat sensor type check

homeassistant/generated/config_flows.py

@@ -140,6 +140,7 @@ FLOWS = [
     "nws",
     "nzbget",
     "omnilogic",
+    "ondilo_ico",
     "onewire",
     "onvif",
     "opentherm_gw",