Add support for OpenAPI code generation (phase is generate-sources)

openapi.yml

@@ -0,0 +1,59 @@
+openapi: 3.0.3
+info:
+  title: swisssign-challenge - dlmw
+  description: |-
+    This is the documentation for the SwissSign Challenge API.
+  termsOfService: ""
+  contact:
+    email: dylan@dlmw.ch
+  license:
+    name: GNU General Public License Version 3
+    url: https://www.gnu.org/licenses/gpl-3.0.txt
+  version: 0.0.1
+externalDocs:
+  description: ""
+  url: ""
+servers:
+  - url: ""
+tags:
+  - name: hello
+    description: ""
+
+paths:
+  /hello:
+    get:
+      tags:
+        - hello
+      summary: Get a hello from me
+      operationId: getHello
+      responses:
+        200:
+          description: "Hello"
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/HelloResponse"
+
+components:
+  schemas:
+    HelloResponse:
+      type: object
+      properties:
+        value:
+          type: string
+
+    ErrorResponse:
+      type: object
+      required:
+        - message
+        - code
+      properties:
+        message:
+          type: string
+          description: Human-readable error message
+        code:
+          type: integer
+          description: Machine-readable error code
+        details:
+          type: object
+          description: Additional error details when available