Seamm

* Fixed a bug with keeping the current name when updating a system.

2023.9.26 -- Added units to header in tables, and bugfixes.
* The headers for table columns now include units when generated automatically when
writing results. Existing columns are not changed.
* Changed the join step image and added the code to enable deleting it.
* Fixed an issue with the sizie of subwindows in edit dialogs

* Caught errors when writing out the final structures for viewing and improved
messages in such cases.
* Keyed columns in table output are used for e.g. the diffusion coefficients of
multi-component fluids, where the column is expanded for each component.

* Handle non-scalar results using JSON so they can be output to tables
and added to the properties in the database.
* Fixed error submitting jobs to Dashboard the user doesn't have a login for.
* Ask for credentials when adding a new dashboard to job dialog.
* Fixed bug creating a new project.

2023.6.28 -- Improved error handling contacting Dashboards.
* Trap and display errors when contacting Dashboards
* Allow SEAMM to continue despite such errors

* Enhanced handling of command-line options to supported self contained flowcharts.
* Various enhancements to graphs to better present results.
* Added tracebacks to error report to identify the code responsible for the issue.
* Correctly remember the filename for flowcharts opened from disk.

* When a description was not provided in either the command-line or the flowchart,
running standlone crashed.