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* Quick Look panel for showing quickly the contents of scalars and small arrays.
* The Repository tree shows Kind, Element Type and Summary columns by default.
* If one file or directory is opened, or given on the command line, it is expanded.
* Only add a '-' item to the collector combo boxes if the array has less dimensions than the inspector.
* The table inspector has "8.4g" as the default format for floats. The tooltip shows all digits.
* Added __main__.py so argos can be started with: python -m argos.
* Fixed import in Line Plot and Image Plot inspectors (issue 20).
* Fixed errors when running Argos with Python 3.10.