Update empty method guards to new style with regex (see PR).
Used clang-format 18.1.8.
New actions to validate code formatting is added.
Update .clang-format with disabling of include sorting.
It is temporary changes, then include will be sorted.
Apply formatting for /src and /tools folder.
The files with .hxx,.cxx,.lxx,.h,.pxx,.hpp,*.cpp extensions.
Adaptor2d_Curve2d, Adaptor3d_Curve and Adaptor3d_Surface now inherit Standard_Transient.
Interfaces Adaptor2d_HCurve2d, Adaptor3d_HCurve, Adaptor3d_HSurface and their subclasses
are now aliases to Adaptor2d_Curve2d, Adaptor3d_Curve and Adaptor3d_Surface.
Removed numerous unsafe reinterpret casts.
Generic classes Adaptor3d_GenHCurve, Adaptor3d_GenHSurface, Adaptor2d_GenHCurve2d have been removed.
Several redundant .lxx files have been merged into .hxx.
Removed obsolete adaptor classes with H suffix.
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl":
- WOK-generated header files from inc and sources from drv are moved to src
- CDL files removed
- All packages are converted to nocdlpack
Generic classes from "BRepApprox" package:
"BRepApprox_ApproxLineGen" and "BRepApprox_SurfaceToolGen" converted to the non-generic classes "BRepApprox_ApproxLine" and "BRepApprox_SurfaceTool".
Generic classes from "BRepBlend" package:
"BRepBlend_HCurve3dToolGen" and "BRepBlend_HCurve2dToolGen" converted to the non-generic classes "BRepBlend_HCurve3dTool" and "BRepBlend_HCurve2dTool".
Generic classes from "Blend" package:
"Blend_Extremity", "Blend_Line" and "Blend_PointOnRst" moved to the corresponding non-generic classes "BRepBlend_Extremity", "BRepBlend_Line" and "BRepBlend_PointOnRst" to "BRepBlend" package.
And some other minor changes were done.
Field "myPntOn2S" was deleted from "BRepApprox_ApproxLine" class. Therefore BRepApprox_ApproxLine::Point(...) method was a little changed.
