ENH: Update Autoscoper modernizing CUDA integration

This commit updates the Autoscoper project by replacing the deprecated
FindCUDA CMake module with the more robust and first-class support for
CUDA language. The changes leverage the following key features introduced
in various CMake versions:

- CMake 3.8: Support by the Makefile Generators and the Ninja generator
  on Linux, macOS, and Windows
  See https://cmake.org/cmake/help/latest/release/3.8.html#cuda\

- CMake 3.9: Support by the Visual Studio Generators for VS 2010 and above.
  See https://cmake.org/cmake/help/latest/release/3.9.html#languages

- CMake 3.17: Introduction of FindCUDAToolkit
  See https://cmake.org/cmake/help/latest/release/3.17.html#modules
  and https://cmake.org/cmake/help/latest/module/FindCUDAToolkit.html#module:FindCUDAToolkit

List of Autoscoper changes:

```
$ git shortlog 7df4365ec..da782db91 --no-merges
Jean-Christophe Fillion-Robin (2):
      COMP: Update minimum CMake version from 3.8 to 3.17.5
      COMP: Modernize CUDA integration using FindCUDAToolkit CMake module
```

SuperBuild.cmake

@@ -22,13 +22,32 @@ set(${proj}_DEPENDS
   )
 
 if(DEFINED ENV{SlicerAutoscoperM_CUDA_PATH})
-  set(ENV{CUDA_PATH} $ENV{SlicerAutoscoperM_CUDA_PATH})
+  file(TO_CMAKE_PATH "$ENV{SlicerAutoscoperM_CUDA_PATH}" _cuda_path)
+  if(CMAKE_GENERATOR MATCHES "Visual Studio")
+    # https://cmake.org/cmake/help/latest/variable/CMAKE_GENERATOR_TOOLSET.html#visual-studio-toolset-selection
+    if(NOT "${CMAKE_GENERATOR_TOOLSET}" MATCHES "cuda=")
+      set(_generator_toolset_key_value "cuda=${_cuda_path}")
+      if(NOT "${CMAKE_GENERATOR_TOOLSET}" STREQUAL "")
+        set(CMAKE_GENERATOR_TOOLSET "${CMAKE_GENERATOR_TOOLSET},${_generator_toolset_key_value}")
+      else()
+        set(CMAKE_GENERATOR_TOOLSET "${_generator_toolset_key_value}")
+      endif()
+    endif()
+  else()
+    # See https://cmake.org/cmake/help/latest/envvar/CUDACXX.html#cudacxx
+    set(ENV{CUDACXX} $ENV{_cuda_path}/bin/nvcc)
+  endif()
 endif()
 
-find_package(CUDA)
-if(CUDA_FOUND)
-  # Variable expected by find_package(CUDA) also used in Autoscoper
-  mark_as_superbuild(VARS CUDA_TOOLKIT_ROOT_DIR PROJECTS Autoscoper-CUDA)
+include(CheckLanguage)
+check_language(CUDA)
+if(CMAKE_CUDA_COMPILER)
+  # Variable expected by CUDA language also used in Autoscoper
+  if(CMAKE_GENERATOR MATCHES "Visual Studio")
+    mark_as_superbuild(VARS CMAKE_GENERATOR_TOOLSET PROJECTS Autoscoper-CUDA)
+  else()
+    mark_as_superbuild(VARS CMAKE_CUDA_COMPILER PROJECTS Autoscoper-CUDA)
+  endif()
   list(APPEND ${proj}_DEPENDS
     Autoscoper-CUDA
     )

SuperBuild/External_Autoscoper.cmake

@@ -29,13 +29,13 @@ if(NOT DEFINED ${proj}_DIR AND NOT ${SUPERBUILD_TOPLEVEL_PROJECT}_USE_SYSTEM_${p
 
   ExternalProject_SetIfNotDefined(
     Slicer_${proj}_GIT_REPOSITORY
-    "https://github.com/BrownBiomechanics/Autoscoper.git"
+    "https://github.com/jcfr/Autoscoper.git"
     QUIET
   )
 
   ExternalProject_SetIfNotDefined(
     Slicer_${proj}_GIT_TAG
-    "7df4365ecb1919fa10cb3e67a836467db0686f2e"
+    "da782db91bfe8eb9eda0bc28ceb49eae52432c02"
     QUIET
   )