App Bundles operate in their own shell environment that is different
from the one in the terminal. the default PATH variable for all Bundles
is /usr/bin:/bin:/usr/sbin:/sbin. because of that mpv can not find
binaries installed by package manager that might be used in scripts for
example.
add an option to prepend paths to the Bundle PATH. we prepend to make
the order fully configurable, opposed to appending where the default
Bundle binaries would always take precedence.
by default utilises the color space of the screen on which the window is
located. if a specific value is defined, it will instead be utilised.
depending on the chosen color space the macOS EDR (HDR) support is
activated and that OS's transformation (tone mapping) is used.
Fixes#7341
add new app_bridge objc file for bridging between mpv core and app
functionality. replace old EventsResponder singleton with AppHub.
another step to clean up all App functionality and have one central
place for it.
der richter