fix issue in the model

lib/models/SOAP/post_physical_exam_request_model.dart

@@ -99,7 +99,7 @@ class ListHisProgNotePhysicalExaminationVM {
     final Map<String, dynamic> data = new Map<String, dynamic>();
     data['episodeId'] = this.episodeId;
     data['appointmentNo'] = this.appointmentNo;
-    data['AdmissionNo'] = this.admissionNo;
+    data['admissionNo'] = this.admissionNo;
     data['examType'] = this.examType;
     data['examId'] = this.examId;
     data['patientMRN'] = this.patientMRN;