Cleanup: parameters: extra=forbid, optimize: battery, inverter optional (#361)

* Cleanup: parameters: extra=forbid, optimize: battery, inverter optional

 * Don't allow extra fields for parameters/REST-API (at least for now while
   changing API).
 * Allow both battery and inverter to be set optionally (atm optional
   battery not implemented, no API constraints).
 * inverter: Remove default max_power_wh
 * single_test_optimization: Add more cli-parameters

* Workflow docker-build: Don't try to authenticate for PRs

 * Secrets are not available anyway for forks.

tests/testdata/optimize_input_1.json

@@ -31,8 +31,8 @@
         "initial_soc_percentage": 80,
         "min_soc_percentage": 15
     },
-    "wechselrichter": {
-        "max_leistung_wh": 10000
+    "inverter": {
+        "max_power_wh": 10000
     },
     "eauto": {
         "capacity_wh": 60000,

tests/testdata/optimize_input_2.json

@@ -158,6 +158,9 @@
         "initial_soc_percentage": 80,
         "min_soc_percentage": 0
     },
+    "inverter": {
+        "max_power_wh": 10000
+    },
     "eauto": {
         "capacity_wh": 60000,
         "charging_efficiency": 0.95,