fix(Video): Added fallback checks for DICOM video (#3402)

* fix(Video): Added fallback checks for DICOM video
Added some docs for video, pdf and upload.

* Added separate headings for DICOM PDF, DICOM Video and DICOM Upload in the docs.

* Updated docs for singlepart data source configuration.

platform/docs/docs/configuration/dataSources/dicom-web.md

@@ -153,9 +153,32 @@ window.config = {
 };
 ```
 
+### Data Source Configuration Options
+
+The following properties can be added to the `configuration` property of each data source.
+
+##### `dicomUploadEnabled`
+A boolean indicating if the DICOM upload to the data source is permitted/accepted or not. A value of true provides a link on the OHIF work list page that allows for DICOM files from the local file system to be uploaded to the data source
+
+![toolbarModule-layout](../../assets/img/uploader.gif)
+
+#### `singlepart`
+A comma delimited string specifying which payloads the data source responds with as single part. Those not listed are considered multipart. Values that can be included here are `pdf`, `video`, `bulkdata`, `thumbnail` and `image`.
+
+For DICOM video and PDF it has been found that Orthanc delivers multipart, while DCM4CHEE delivers single part. Consult the DICOM conformance statement for your particular data source to determine which payload types it delivers.
+
 To learn more about how you can configure the OHIF Viewer, check out our
 [Configuration Guide](../index.md).
 
+### DICOM Upload
+See the [`dicomUploadEnabled`](#dicomuploadenabled) data source configuration option.
+
+### DICOM PDF
+See the [`singlepart`](#singlepart) data source configuration option.
+
+### DICOM Video
+See the [`singlepart`](#singlepart) data source configuration option.
+
 ### Running DCM4CHEE
 
 dcm4che is a collection of open source applications for healthcare enterprise