Fix cmake with msvc generator.

* Remove unused libnest2d files. Make it use the global build script targets.
* Modify FindTBB to address multi-config builds and take care of __TBB_NO_IMPLICIT_LINKAGE
* Move FindNLopt to project common cmake module dir
* Rename libnest.hpp to nester.hpp and libnest.h to libnest.hpp 
* Clean up common test suite build scripts

src/libslic3r/CMakeLists.txt

@@ -204,7 +204,7 @@ if (SLIC3R_PCH AND NOT SLIC3R_SYNTAXONLY)
     add_precompiled_header(libslic3r pchheader.hpp FORCEINCLUDE)
 endif ()
 
-target_compile_definitions(libslic3r PUBLIC -DUSE_TBB)
+target_compile_definitions(libslic3r PUBLIC -DUSE_TBB -DTBB_USE_CAPTURED_EXCEPTION=0)
 target_include_directories(libslic3r PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${LIBNEST2D_INCLUDES} PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
 target_link_libraries(libslic3r
     libnest2d
@@ -221,7 +221,7 @@ target_link_libraries(libslic3r
     poly2tri
     qhull
     semver
-    tbb
+    TBB::tbb
     ${CMAKE_DL_LIBS}
     )
 

src/libslic3r/Time.cpp

@@ -11,7 +11,7 @@
 #include <map>
 #endif
 
-#include "libslic3r/Utils.hpp"
+// #include "libslic3r/Utils.hpp"
 
 namespace Slic3r {
 namespace Utils {