Deareis

- Updated classifiers in `setup.py`.
- Fixed a bug that caused an error when deleting any data set.

- Added an Inno Setup Script for producing an installer for Windows.
- Updated About window.
- Updated docstrings.
- Fixed a bug in the `utility.is_filtered_item_visible` implementation that would cause the wrong result to be returned.
- Fixed a bug that prevented plots and the table of data points from updating when undoing/redoing toggling of the masked state of data points.
- Refactored code.

- Rewrote large parts of the program.
- Added the ability to create a project by merging two or more existing projects.
- Added remappable keybindings.
- Added a command palette that can be used to search for and to execute actions. Accessible by default via the Ctrl+P keybinding.
- Added individual toggles for most plots to set whether or not the plot's limits should be adjusted automatically when modifying the contents of the plot.
- Added a button for clearing the list of recent projects.
- Added a button for randomizing an active plot item's color.
- Various bug fixes.

- Added a `Plotting` tab that can be used to plot multiple data sets, test results, fit results, and simulation results in a single figure. Currently supports Nyquist, Bode (magnitude), and Bode (phase) plot types.
- Added a setting for specifying the number of points per decade to use when drawing simulated responses as lines.
- Added an "Edit" menu to the menu bar with "Undo" and "Redo" actions.
- Added indicators for when the program is busy loading data files or loading/saving projects.
- Added support for messages and progress bars to the indicator that is shown when the program is busy.
- Added a check to make sure there are no UUID collisions when saving a project.
- Added more keybindings.
- Added more tooltips.
- Updated the project file and config file structures to support the new features.
- Updated keybinding documentation.
- Updated existing tooltips.
- Updated the labels of some buttons.
- Updated the implementation of the recent projects table to update when a project is saved.
- Updated how paths, which are passed as CLI arguments, to data files and projects, and project snapshots are processed when the program is started.
- Updated CDC inputs in the fitting and simulation tabs to not require the Enter/Return key to be pressed before a fit or simulation can be performed.
- Updated the confirmation window, which is shown when possibly saving over an existing project file, to automatically adjust its height to accommodate long paths.
- Removed the restriction imposed on moving the error message window.
- Fixed a bug that allowed duplicate entries in the list of recent projects.
- Fixed a bug that allowed multiple instances of a project to be loaded.
- Fixed a bug that triggered state snapshots twice when toggling the mask state of multiple points.
- Fixed a bug that allowed specifying an invalid number of RC circuits for the Kramers-Kronig test.

- Fixed the handling of unsupported file formats when loading data sets.
- Fixed erroneous extension on state file for storing recently opened projects.
- Fixed the effect of editing notes on whether or not a project is dirty.
- Fixed a bug that caused an exception just before the program terminates.

- Added a confirmation window when possibly overwriting a file while saving a project under a new name.
- Added file extension filters to the file dialog when loading data sets.
- Added support for the new circuit validation that occurs prior to fitting a circuit.
- Updated the implementation of the window that is used for displaying error messages.
- Fixed a bug that prevented saving a project that had previously been saved, then modified just prior to an abrupt termination of the program, and finally restored from the snapshot created before the program terminated.