Codes for load-edit directive is placing under framework directory:
horizon/static/framework/widgets
But it has code inside for Instance creation workflow.
This should be commonized.
If load-edit will be commonized, we can use it for Key Pair importing,
Orchestration Template and Environment in stack creation.
Furthermore, plugins can use load-edit. e.g. cert file uploading in
Magnum UI, cluster spec yaml registering in Senlin Dashboard, etc.
This patch fixes the issue.
Also, at the point view from UX, file input element should be
above of textarea. Because user wants to load file at first,
rather than input directly.
Change-Id: I3e1befb81996841820111558adf3ca386709904d
Closes-Bug: #1704260
876f80c4a8