* Bulk replaced tabs with spaces
* Bulk removed trailing whitespace from lines
* Replaced c-style comments with c++-style comments in file banners
* Replace nested namespace definitions with single concise definitions (C++17), this keeps the indentation more manageable
* Cleanup ordering and spacing of include directives
* Bulk renaming of header file extensions from '.h' to '.hpp'.
* Update CODING-STYLE.md
* Update target_compile_features from cxx_std_11 to cxx_std_20.
* Refresh .clang-format file. Still needs a lot of tweaking.
- Added side pane for product preview and information
- Product selection is done with a separate pushbutton, so that user gets a
chance to preview the complete product information before committing to the
selection
- Supports two view modes: Grid View and List View
- View mode is automatically stored in Settings, so it will default to the
user's prefered mode
- Should address most concerns in #109 and #142
- Tweaks to layout so that it resizes without artifacts.
- Removed parent window so that window manager will not center dialog on parent,
which makes resizing difficult depending on size and location of parent window.
Jaye Evins