Seamm

* Removed directories and files not ending in ".flow" from the list of flowcharts
that can be opened.
* When getting a flowchart from a previous job, the list of jobs is reversed so
the most recent is at the top.
* Enhanced the handling of parameters to support e.g. lists of values with the
normal units attached. Used in e.g. thermochemistry to allow lists of temperatures
and pressures with associated units.

* Fixed a problem converting e.g. E_h to kJ/mol in the GUI widgets. The problem
occurred whenever the conversion was not direct but involved different
quantities.
* Internal enhancement: exposed the metadata to graphical nodes as a property.

* The standard structure handling widgets and methods had an error is the approach
was a variable rather than one of the choices.

* Added multiple axes to line graphs.
* Updated to correct version of plotly. 'latest' is actually not.

* Cleaned up and add to the standard parameters used for naming system and
configurations. 'title' refers to the title in the file, if it exists.

* Allows capital letters for the variables, column names, etc. that results are
stored in. For example, 'T', 'P', and 'V'.

2024.6.27 -- Added support for using local data files.
* Added support in the Flowchart and Node classes for using local data files for
e.g. forcefields. This allows the user to specify a local file, which is copied to
the working directory of the job.
* Also added a flag to both the Flowchart and Node classes indicating that the job
is running in the JobServer rather than command-line.

2024.5.27 -- Bugfix: Error saving results table.