Support statefiles in F3D

[mwestphal]

Is your feature request related to a problem? Please describe.
F3D has many options, however it would be beneficial to be able to read/write statefiles that will contains all options

Describe the solution you'd like

• Create a dedicated json based syntax for statefiles, it could be the same as configuration files
• Add binding to write a statefile to disk and rely on a template based cli option to select the location
• Add biding to write statefile to clipboard (may need VTK work)
• Add binding to read statefile from clipboad (may need VTK work)
• Add CLI option to load a statefile, it will be similar to config file reading