Spec Update

• Added support for PathRoot

• files namespace:

  • Added download_zip endpoint
  • Add properties_error to UploadError

• team_common namespace:

  • Added new MemberSpaceLimitType union

• team namespace:

  • Added additional error types to MembersRemoveError union
  • Updated docstring

• users namespace:

  • Additional member space limit fields in TeamSpaceAllocation struct

• team_log namespace:

  • Lots of updates to struct names and descriptions (note these routes and structs are still in preview and subject to further changes)