Merge commit 'a825980f9f93af32c719497f9aab1e14248ab471'

* commit 'a825980f9f93af32c719497f9aab1e14248ab471':
  mov: Export bounds and padding from spherical metadata
  spherical: Add tiled equirectangular type and projection-specific properties
  mov: Validate cubemap layout

This commit is a noop, see
ac8c72f8f1f758ae7606db42eac83d04418aec48
1b7ffddb3a999f37443c58232b112534c0abcf28
022b4ea5837bb79b9fe32bf707c3117be8e6d730

Merged-by: James Almer <jamrial@gmail.com>