Improved initialization, movie processing selection, and misc.

[bahanonu]

Main features and changes:

• Increment to CIAtah version v4.0.3.
• Several fixes to improve usability and initializing CIAtah.
• Addition of detrending function to API, alias for existing functionality.

New functions

• ciapkg.movie_processing.detrendMovie - Detrend a movie to account for photobleaching, etc. Alias for call to normalizeMovie.

Updated @ciatah

• getRegistrationSettings - Handle "User selects specific value" going into infinite loop. Allow cancel option to prevent loop.
• initializeObj - Wrap calls to diverging_map to avoid potential ciatah initialization errors on macOS.
• modelPreprocessMovieFunction - Add verification that turboreg MEX function is in the path.

Updated +ciapkg

• computeManualMotionCorrection - Improved pre-allocation, minimize GUI slowdown for large inputs over time. Improve speed of GUI and responsiveness.
• turboregMovie - Additional display of information. Added verification that turboreg MEX function is in the path.
• changeFont - Updated so can update font size, name, color more independent of one another.
• downloadCnmfGithubRepositories - Update display of information if CVX is not automatically found.

[bahanonu]

Tested on MATLAB 2020a on Windows 10. Merging.