Feature 239 creates central config panel (#276)

* Add central config into ConfigFlow

* Test manual of confif_flow ok

* Ignore central confic in instanciate entities

* Init data in base_thermostat ok

* With central configuration testu ok

* All testu ok

* With fixture for init_vtherm_api and init_central_config

* Add reload VTherms when central configuration is changed

* Update strings.json and replace security by safety in README.

* UPdate README with release 5.0

* FIX missing Presets central configuration initialisation

* FIX frost_away_temp translation missing

---------

Co-authored-by: Jean-Marc Collin <jean-marc.collin-extern@renault.com>

.devcontainer/devcontainer.json

@@ -30,7 +30,8 @@
 				"waderyan.gitblame",
 				"keesschollaart.vscode-home-assistant",
 				"vscode.markdown-math",
-				"yzhang.markdown-all-in-one"
+				"yzhang.markdown-all-in-one",
+				"ms-python.vscode-pylance"
 			],
 			// "mounts": [
 			//	"source=${localWorkspaceFolder}/.devcontainer/configuration.yaml,target=${localWorkspaceFolder}/config/www/community/,type=bind,consistency=cached",