Introduce ArrayWrapper?D, replacing ConstExpression?DArrayCopy

+ no explicit copy constructor of structs needed any more
+ removed assignment operator of structs that don't hold a const sType member (for those, we still need the assignment operator!)
+ simplified operator==() of structs (pre C++20)
+ resolved some 32bit warnings

samples/DynamicUniform/DynamicUniform.cpp

@@ -86,7 +86,7 @@ int main(int /*argc*/, char ** /*argv*/)
     model = glm::translate(model, glm::vec3(-1.5f, 1.5f, -1.5f));
     mvpcs[1] = clip * projection * view * model;
 
-    VkDeviceSize bufferSize = sizeof(glm::mat4x4);
+    vk::DeviceSize bufferSize = sizeof(glm::mat4x4);
     if (limits.minUniformBufferOffsetAlignment)
     {
       bufferSize = (bufferSize + limits.minUniformBufferOffsetAlignment - 1) & ~(limits.minUniformBufferOffsetAlignment - 1);