Add File, Blob, and ReadableStream in `putFile`

[zone117x]

Support common file data types like File, Blob, and ReadableStream in the storage APIs.

Provides a straightforward way to use common DOM APIs like <input type=file/> and DataTransfer / DragEvent.

Note: this initial task is a surface API level change, and will not address issues related to encryption size and efficiency. That is, when encryption is enabled, the data streams still be loaded into memory before uploading.

[stackatron]

@asopinka @apuyou you both had feedback on the files API. Curious if you feel this would cover your needs or any feedback you might have? Thx

[apuyou]

Hi @jeffdomke, I am looking for something like #638, which is about storing documents instead of native files. It doesn't look like this issue is related. Thanks!