* Check Unsaved changes (partially related to #5903)
+ Allow create new project when Plater is empty, but some of presets are modified (related to #5903)
+ When creating new project allow Keep or Discard modification from previous project
+ Added check of changes:
* before any load project (including DnD and "Load From Recent Projects")
* before preset updater
* when configuration is changing from the ConfigWizard
+ Dialog caption is added for each check
+ Create/Destroy ConfigWizard every time when it's called
* Check Unsaved changes: Next Improvements
+ For dialog "Save project changes" added a reason of saving and name of the current project (or "Untitled")
+ UnsavedChangesDialog: Headers are extended to better explain the reason
+ Preferences: Fixed tooltiops for "Always ask for unsaved changes when..."
+ Suppress "Remember my choice" checkbox for actions which are not frequently used
* Fixed behavior of the application when try to save changed project but "Cancel" button is selected in "Save file as..." dialog
* Check unsaved changes: Improvements for Config Wizard - Check all cases when presets should be updated
+ Fixed info line for Materials pages. Text of the info relates to the printer technology now
* Improved suggested name for a project when Application is closing
* Fixed Linux/OSX build warnings
Zero support base spacing is newly allowed, switching from
the "support base" infill pattern to rectilinar infill pattern.
Why someone would want to use a solid infill for support base eludes me,
but it is simpler to support it instead of working out some rules on
minimum support base density.
Fixes Support patern spacing set to zero causing crash #6989
+ Show 2 groups of errors: "Auto-repared" and "Remaning".
+ Use different icons for volumes with/without remaining errors
+ Fixed update of the ObjectList warnings icons after switch the color mode of a PrusaSlicer
+ Some code refactoring: Use same code for tooltips for "exclamation"-icon from an ObjectList and from a Sidebar->ObjectInfo
so that a mesh with incorrectly oriented faces will not be considered
a manifold.
Added assert for 3D convex hulls constructed by QHull. They shall be
manifold (however sometimes they are not).
TriangleMesh newly only holds indexed_triangle_set and
TriangleMeshStats. TriangleMeshStats contains an excerpt of stl_stats.
TriangleMeshStats are updated when initializing with indexed_triangle_set.
Admesh triangle mesh fixing is newly only used when loading an STL.
AMF / 3MF / OBJ file formats are already indexed triangle sets, thus
they are no more converted to admesh stl_file format, nor fixed
through admesh repair machinery. When importing AMF / 3MF / OBJ files,
volume is calculated and if negative, all faces are flipped. Also
a bounding box and number of open edges is calculated.
Implemented its_number_of_patches(), its_num_open_edges()
Optimized its_split(), its_is_splittable() using a visitor pattern.
Reworked QHull integration into TriangleMesh:
1) Face normals were not right.
2) Indexed triangle set is newly emitted instead of duplicating
vertices for each face.
Fixed cut_mesh(): Orient the triangulated faces correctly.
