Add fields with one click
* Fields WIP. * Adding fields to I3D file. * Minor code updates. * Fit into bounds. * Minor code updates. * Linter updates. * Package version update. * README update. * README update.
* Fields WIP. * Adding fields to I3D file. * Minor code updates. * Fit into bounds. * Minor code updates. * Linter updates. * Package version update. * README update. * README update.