Changes to Upload Project assets

added the non-success response with the status 415

the endpoint scheme security UserBearerAuth was removed from the API

the endpoint scheme security UserBearerAuth was added to the API

the assets/items/content request property's minLength was increased from 0 to 1

added the pattern \.([tT][tT][fF]|[oO][tT][fF])$ to the request property assets/items/fileName

api operation id uploadProjectAssets removed and replaced with uploadAssets

the endpoint scheme security BearerAuth was added to the API

added the media type text/html for the response with the status 400

added the media type text/html for the response with the status 401

added the media type text/html for the response with the status 403

added the media type text/html for the response with the status 404

added the media type text/html for the response with the status 413

added the media type text/html for the response with the status 429

added the media type text/html for the response with the status 500

the response property assets/items/assetKey became required for the status 201

the response property assets/items/fileName became required for the status 201

the response property assets/items/id became required for the status 201

the response property error became required for the status 400

the response property error became required for the status 401

the response property error became required for the status 403

the response property error became required for the status 404

the response property error became required for the status 413

the response property error became required for the status 429

the response property error became required for the status 500