Add documentType parameter and possible enums for healthcare (#20329)

Co-authored-by: Aurgho Bhattacharjee <aurghob@microsoft.com>

Author: aurghob

dev/cognitiveservices/data-plane/Language/analyzetext.json

@@ -741,6 +741,21 @@
             "modelAsString": true
           }
         },
+        "documentType": {
+          "type": "string",
+          "description": "Document type that can be provided as input for Fhir Documents.",
+          "enum": [
+            "None",
+            "ClinicalTrial",
+            "DischargeSummary",
+            "ProgressNote",
+            "HistoryAndPhysical",
+            "Consult",
+            "Imaging",
+            "Pathology",
+            "ProcedureNote"
+          ]
+        },
         "stringIndexType": {
           "$ref": "common.json#/definitions/StringIndexType"
         }