* get image returns optional<Mat> instead of unique_ptr<Mat>
* introduce complexity
* rename image load function
* add example for a basic reader for binary image files
* fix windows build?
* add a status bar underneath the menu bar
* use status bar in custom_0 example app
* clang formats
* packing w/ pragma push
* add "Save As" functions to image views
* resize over reserve
* rm local override uri
* add simple thread pool
* rename to simple_thread_pool
* get rid of useless renderlib
* document version inc
* extract hardcoded values to in-header
* clang format patch
* clone registered image in custom_0
* document binary-file header
* minor fixes
* clang format
* rm unused render cmake