ppphp

Add `override` to class derived from `ResourceFormatSaver` and `ResourceFormatLoader`. It helps me understand codes.

Gui: separate quarter as a separate library

2

It is my question why package like Quarter is compiled with the whole Gui library, and library like Gui should also be separated into some submodule so that FreeCAD does...

fix some warnings

4

a cmake string quotes a float mark a character replacement

type hint: add type hint for checksum and xpak

1

add some type hint

Clang build support possibility?

1

Is there any possible to support clang in windows platform? The obstacle is that boost requires a name like `xxx-cl-xxx.dll`. Otherwise is there any build recipe or way to contribute?

unique ptr usage is limited in sketch handler creating stage