add solution api file

src/api/file_solution.yaml

@@ -0,0 +1,54 @@
+type: file
+example: "resources_test/label_projection/pancreas/solution.h5ad"
+info:
+  label: "Solution"
+  summary: "The solution for the test data"
+  slots:
+    layers: 
+      - type: integer
+        name: counts
+        description: Raw counts
+        required: true
+      - type: double
+        name: normalized
+        description: Normalized counts
+        required: true
+    obs:
+      - ...
+    var:
+      - ...
+    obsm:
+      - ...
+    uns:
+      - type: string
+        name: dataset_id
+        description: "A unique identifier for the dataset"
+        required: true
+      - name: dataset_name
+        type: string
+        description: Nicely formatted name.
+        required: true
+      - type: string
+        name: dataset_url
+        description: Link to the original source of the dataset.
+        required: false
+      - name: dataset_reference
+        type: string
+        description: Bibtex reference of the paper in which the dataset was published.
+        required: false
+      - name: dataset_summary
+        type: string
+        description: Short description of the dataset.
+        required: true
+      - name: dataset_description
+        type: string
+        description: Long description of the dataset.
+        required: true
+      - name: dataset_organism
+        type: string
+        description: The organism of the sample in the dataset.
+        required: false
+      - type: string
+        name: normalization_id
+        description: "Which normalization was used"
+        required: true