Support upload of files in JS (not using AddMedia)

[bchow68]

Thread: https://discord.com/channels/1206536148650950736/1436088486800261192

Issue:
I have a test script where I use JS to call an external API to upload a file from my workspace to a project on my server so I can access it through the iOS mobile app.

DCD link:
https://console.devicecloud.dev/results?upload=1b327644-fdf0-4ed5-9105-f00e80f4127c&result=842424

Error:
Caused by host exception: java.io.FileNotFoundException: documents/sitecapture-about.pdf (No such file or directory)

Per Tom:
"...as suspected, the PDF isn't included in the upload as DCD will only upload non-YAML files linked from addMedia"