Implement an Upload form component

[jrgriffiniii]

This should trigger the transmission of the POST requests to the Rails API for Upload Objects on the server. This component should have nested components (please see the discussion on https://stackoverflow.com/questions/48474915/how-nested-components-works-in-stencil for reference). Also, https://stenciljs.com/docs/forms provides a simple example implementation.

[jrgriffiniii]

It might also be helpful to have a screenshot of the current BrowseEverything interface for reference:

[jrgriffiniii]

@jrgriffiniii as a test for an automated maintenance task, this issue is being labeled as stale due to its age. Should you wish to reclassify this as a prioritized issue, please contact @samvera/maintenance for assistance. Thank you for your patience.