refactor: migrate voxel data storage to DataAllocator for CUDA

CMakeLists.txt

@@ -9,6 +9,13 @@ cmake_minimum_required (VERSION 3.26)
 
 project(uLib)
 
+# CUDA Toolkit seems to be missing locally. Toggle ON if nvcc is made available.
+option(USE_CUDA "Enable CUDA support" ON)
+if(USE_CUDA)
+    enable_language(CUDA)
+    add_compile_definitions(USE_CUDA)
+endif()
+
 # The version number.
 set(PROJECT_VERSION_MAJOR 0)
 set(PROJECT_VERSION_MINOR 6)