Convert to standard Gradle project layout

Transform output case and quotes.

Fixed bug in save expressions feature.

Added a "quoted" feature to CSV/TSV RegEx generator.

Refactoring into packages. New main class.

Minor tidy up.

Added save/load for expressions.

Forgot to enable command line theme.

Implemented long to wide pivot. Desaturated icons.

Implemented save feature. Save replace table on focus change.

Merge search/replace dialog into main form. GUI clean-up.

Added Seach/Replace dialog to main window.

Moved into a package.

Implemented wide-to-long pivot. Functional but needs more testing/robustifying.

Created table model backed by Guava table.

Missed a component when adding right-click menu. Fixed.

Added right-click edit menu to relevant text components.

Made dark theme a command line option.

Fixed bug where empty rows are produced if regex matches entire line.

Added regex error display, and DOTALL support.

Rewrote JRex frame. Added transpose option.

Added a "load from file" feature.

Quick code clean up.

Added 'use nulls' option. Empty groups are replaced with nulls.

Initial commit.