* add cpu support * fix * fix comments
* Update mmdet minimum version * Update build.yml * mminstall.txt * Update mmseg minimum version
* support dataset augmentation visualization * unify two kinds of dataset visualization * update docs about visualization * fix typos * change description in doc
* Fix figure links (also to fix pdf compilation) * Hack pdf doc compilation * Hack pdf doc compilation * Set the priority of figure formats when building html, add png format fig to fix pdf compilation
* Merge English and Chinese doc into the same folder * Add logo image back * Add logo image back