Add Multiple Media From A Request With A Key

[nausixkiz]

In Spatie\MediaLibrary\MediaCollections\FileAdderFactory have method called createFromRequest

So, it only get first file from request with a key because of ->first(). It should have one more function to get all files with a key

For example:
If I have request like that

I can't call $post->addMediaFromRequest('document-file')->toMediaCollection('document-file'); to get all file with document-file key. Also, I can't call $post->addAllMediaFromRequest() because it will get the whole file with both thump & document-file key