Debug libraries are outdated within archive for VC12

[gkv311]

I don't know if this repository is intended to be used apart from CI (I've not found if FreeCAD project manages FreeCADLibs updates),
but trying to build FreeCAD 0.17 with FreeCADLibs_11.10_x64_VC12.7z I've observed that Debug versions of (at least) OCCT libraries within archive are outdated (files are dated by '2015) - leading to linkage errors (Release version is fine).

So, if Debug libraries are not intended to be used, it might be reasonable removing them from archives, or at least indicated on github page about this limitation.