* implemented helper functions to get ffmpeg and oiio tool arguments
* modified validation functions to be able to handle list of arguments
* path getters can return a path in AYON mode if one argument is returned
* removed test exception
* modified docstrings
* is_oiio_supported is using new functions to get launch arguments
* new functions are in lib public =
* use new functions all over the place
* renamed 'ffmpeg_path' to 'ffmpeg_args'
* raise 'ToolNotFoundError' if tool argument could not be found
* reraise 'KnownPublishError' in publish plugins
* fix comment
* simplify args start
* ffmpeg and oiio function require tool name and support additional arguments
* renamed 'get_oiio_tools_args' to 'get_oiio_tool_args'
* fix variable name
* Tweak log levels and message to be more informative to artist in report page
* Tweak levels and clarity of logs
* Tweak levels and clarity of logs + tweak grammar
* Cosmetics
* Improve logging
* Simplify logging
* Convert to debug log if it's skipping thumbnail integration if there's no thumbnail whatsoever to integrate
* Tweak to debug since they only show representation ids hardly understandable to the artist
* Match logging message across hosts + include filepath for full clarity
* Tweak message to clarify it only starts checking and not that it requires filling + to debug log
* Tweak to debug log if there's basically no thumbnail to integrate at the end
* Tweak log levels
- Artist doesn't care what's prepared, especially since afterwards it's logged what gets written to the database anyway
* Log clearly it's processing a legacy instance
* Cosmetics
Added check if thumbnail representation is not present, created by different plugin by any chance.
ExtractThumbnailSP should be removed when SP is removed, no need to copy and have 2 plugins.
