-Use std commands in menu coming with icons
-Only draggable if activated in menu
-Remove textures except labels and used gl fill instead
-Borders on surrounding buttons
-Fix some openGL issues
-Remove duplicate parameter managment. Kept and improved the one in View3DSettings
-Remove lots of other redundant code
-Replaced FontSize param with FontZoom and enabled auto zoom/size on labels.
-Merged BorderColor and TextColor to single EmphaseColor parameter
-Merged ButtonColor and FrontColor to BaseColor parameter
-Added ChamferSize parameter to control edge and corner size
-Use glDrawArrays() innstead of glBegin() and glEnd()
-Draw butt ends on RGB coordinate system
-Fixe issues where cube switch corner on resize window
- it was frequently requested and people now even published videos since I documented this hidden feature in the Wiki.
However, for a user it is a nightmare without a UI and users who like a bright background need to change the button color to keep the buttons visible.
- it turned out that the current check for default font failed because of wrong check for the hinting
- fix bug that when the FontSize is not yet stored in the parameters, the dialog shows a wrong size value
- the problem is that depending on the OS, the font of the NaviCube is hardly readable. For example under Windows 11, there is no Helvetica font and therefore an ugly replacement font is used. On some laptop screens the font is too large or too small etc.
- as solution this PR add the change the NaviCube's font and font size
- the PR also fixes an issue that the position (corner) of the NaviCube was not respected when the NaviCube is recreated. This fix is necessary for the PR therefore included
- as by-product the PR fixes#8082 since every change in the preferences now properly recreates the NaviCube
- the PR also removes the strange and unused class "HuuhaaClassPy"
* On lines where the variable type is obvious from inspection, avoid repeating the type using auto.
* When possible use a ranged for loop instead of begin() and end() iterators
fixes bug 4495
- add missing edge faces
- implement a proper rotation recipe -> rotate towards the nearest possible state
- add preferences settings to turn off this new rotation behavior
- get rid of transparent cube faces to avoid wrong clicks, this way also remove the backfaces
- to make the edge faces fit, use triangles for the corners
- expose cube size setting to preferences dialog
- add new button to view backside
- get rid of bitmaps because as reported in https://forum.freecadweb.org/viewtopic.php?f=3&t=52118&start=20#p481781
the x y z labels are not scaled on HiDPI screens
moreover they are often "in they way" when you want to click on a corner and in principle they don't provide more info since we already have the CS with the axis labels
- also fix an arithmetic overflow compiler warning
- also rename 2 variables
