Refactor `ep upload` to use Fireworks SDK + Auto-generate flags#379

dphuang2 merged 21 commits intomaineval-protocol/python-sdk:mainfrom

dhuang/dxe-442-refactor-ep-upload-to-use-fireworks-sdk-auto-generate-flagseval-protocol/python-sdk:dhuang/dxe-442-refactor-ep-upload-to-use-fireworks-sdk-auto-generate-flagsCopy head branch name to clipboard