Kostal: add Piko legacy template (#3557)

templates/definition/meter/kostal-piko-legacy.yaml

@@ -0,0 +1,27 @@
+template: kostal-piko-legacy
+products:
+  - brand: Kostal
+    description:
+      generic: Piko (legacy)
+guidedsetup:
+  enable: true
+params:
+  - name: usage
+    choice: ["pv"]
+  - name: host
+  - name: user
+    required: true
+  - name: password
+    required: true
+render: |
+  type: custom
+  power:
+  {{- if eq .usage "pv" }}
+    source: http
+    uri: http://{{ .host }}
+    auth:
+      type: basic
+      user: {{ .user }}
+      password: {{ .password }}
+    regex: '(?s)aktuell.*?(\d+)<'
+  {{- end -}}

templates/docs/meter/kostal-piko-legacy_0.yaml

@@ -0,0 +1,12 @@
+product:
+  brand: Kostal
+  description: Piko (legacy)
+render:
+  - usage: pv
+    default: |
+      type: template
+      template: kostal-piko-legacy
+      usage: pv
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      user: # Benutzerkonto (bspw. E-Mail Adresse, User Id, etc.)
+      password: # Passwort des Benutzerkontos (bei führenden Nullen bitte in einfache Hochkommata setzen)