CLI Upload Tools now with PowerShell support

What's Changed

• updated README with caveat we've only tested on MacOS so far by @matt-manuel in #3
• Add updated PowerShell module and comprehensive testing framework by @matt-manuel in #4

Full Changelog: v0.1.4...v1.0.0

Cognitive3D upload tools

Small updates

• added auto-upload of the object manifest after uploading an dynamic object's assets
• can still do a manual upload of the manifest if the default values need to be changed