Moved to InputField widget in ship creation
Added units mangement to the outline drawing tool
Added helpers for mass, time and angle units
Added units mangement to the transversal areas tool
Corrected the angle bounds
Added units mangement to the hydrostatics tool
Fixed bad integer usage
Fixed box generation for small draft values
Added spreadsheets to the transversal areas tool
Changed the spreadsheet label
Fixed worng variable
Added spreadsheets to the hydrostatics tool