Updated public spec.

Stone specs:

• Updated to new stone spec format (unions are default open).

Auth namespace:

• Added RateLimitReason and RateLimitError for describing 429 responses.

Files namespace:

• Added upload_session/finish_batch route.

Sharing namespace:

• Added change_member_file_access route.
• Added invite_view_no_comment to FolderPolicy.
• Added share_link to FolderAction.
• Added make_viewer_no_comment to MemberAction.
• Added preview_url to SharedFolderMetadata.
• Added access_details to MemberAccessLevelResult, which is the parent folders that amember has access to.
• Added too_many_invitees error to AddFolderMemberError.
• Added automatic_group to AddMemberSelectorError.
• Added insufficient_quota to MountFolderError.
• Added removed to TeamMemberStatus.

Team namespace:

• Added new_group_management_type to GroupUpdateArgs for groups/delete.
• Added include_removed flag to MembersListArg
• Added members/recover route.