Add ESW as service (#64)

Reviewed-on: #64
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Sebastian Gode <sebastian.gode@telekom.de>
Co-committed-by: Sebastian Gode <sebastian.gode@telekom.de>

otc_metadata/data/services/esw.yaml

@@ -0,0 +1,12 @@
+---
+service_category: network
+service_title: Enterprise Switch
+service_type: esw
+service_uri: enterprise-switch
+teams:
+  - name: docs-network-rw
+    permission: write
+cloud_environments:
+  - name: eu_de
+    visibility: internal
+is_global: false