7.2.0

1. Use TAxis attributes in lego plots - ticks/labels/title colors, sizes, offsets
2. Correctly resize stats box when number of lines changes
3. Support JSROOT usage with yarn and webpack
4. Provide FileProxy class to let read ROOT files from arbitrary place
5. Let 'hook' save file functionality to use alternative method to store image files
6. Implement 'tabs' layout for objects display (#238)
7. Upgrade d3.js to version 7.6.1
8. Fix - adjust pad margins when moving palette and frame