S allius/issue217 2 (#230)

* add some reader classes to get the configuration

* adapt unittests

* get config from json or toml file

* loop over all config readers to get the configuration

* rename config test files

* use relative paths for coverage test in vscode

* do not throw an error for missing config files

* remove obsolete tests

* use dotted key notation for pv sub dictonary

* log config reading progress

* remove create_config_toml.py

* remove obsolete tests for the ha_addon

* disable mosquitto tests if the server is down

* ignore main method for test coverage

* increase test coverage

* pytest-cov: use relative_files only on github, so coverage will work with vscode locally

* remove unneeded imports

* add missing test cases

* disable branch coverage, cause its not reachable

.vscode/settings.json

@@ -1,22 +1,20 @@
 {
     "python.analysis.extraPaths": [
-    "app/src",
-    "app/tests",
-    ".venv/lib",
-    "ha_addons/ha_addon/rootfs" ],
+        "app/src",
+        "app/tests",
+        ".venv/lib",
+    ],
     "python.testing.pytestArgs": [
-        "-vvv", 
+        "-vvv",
         "--cov=app/src",
-        "--cov=ha_addons/ha_addon/rootfs",
         "--cov-report=xml",
         "app",
-        "system_tests",
-        "ha_addons"
+        "system_tests"
     ],
     "python.testing.unittestEnabled": false,
     "python.testing.pytestEnabled": true,
     "flake8.args": [
-        "--extend-exclude=app/tests/*.py,system_tests/*.py,ha_addons/ha_addon/tests/*.py"   
+        "--extend-exclude=app/tests/*.py,system_tests/*.py"   
     ],
     "sonarlint.connectedMode.project": {
         "connectionId": "s-allius",