Add Linux support

- Add linux build system using MakeGen
- Fix a swapchain validation error, likelydue to my linux system using a
  different vulkan version
- Make DescriptorPool take in amount of descriptors it needs, instead of
  allocating a mass amount for every pool, causing loads of RAM/VRAM usage

CopiumEngine/src/copium/util/Enum.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include <ostream>
 #include <string>
 #include <vector>
 
@@ -15,7 +14,7 @@ namespace NameSpace { \
   }; \
   static const std::string& ToString(EnumName enumName) \
   { \
-    static std::vector<std::string> enumNames = Copium::EnumPrinter::GetEnumNames(CP_TO_STRING(EnumList)); \
+    static std::vector<std::string> enumNames = Copium::EnumPrinter::GetEnumNames(CP_TO_STRING(#EnumList)); \
     return enumNames[(int)enumName]; \
   } \
   \