Fix gamma rendering issues

- Remove gamma correction from the Vulkan renderer
- Add SamplerCreator, used to specify Min/Mag filter
- Add character texture to example project
- Add AnimationSystem, DebugSystem and UiRenderSystem to example project

CopiumEngine/src/copium/sampler/SamplerCreator.cpp

@@ -0,0 +1,37 @@
+#include "copium/sampler/SamplerCreator.h"
+
+#include "copium/util/Common.h"
+
+namespace Copium
+{
+
+  SamplerCreator::SamplerCreator() = default;
+
+  SamplerCreator::SamplerCreator(const MetaFileClass& metaClass)
+  {
+    if (metaClass.HasValue("min-filter"))
+      minFilter = GetFilterFromString(metaClass.GetValue("min-filter"));
+    if (metaClass.HasValue("mag-filter"))
+      magFilter = GetFilterFromString(metaClass.GetValue("mag-filter"));
+  }
+
+  void SamplerCreator::SetMinFilter(VkFilter minFilter)
+  {
+    SamplerCreator::minFilter = minFilter;
+  }
+
+  void SamplerCreator::SetMagFilter(VkFilter magFilter)
+  {
+    SamplerCreator::magFilter = magFilter;
+  }
+
+  VkFilter SamplerCreator::GetFilterFromString(const std::string& str) const
+  {
+    if (str == "nearest")
+      return VK_FILTER_NEAREST;
+    else if (str == "linear")
+      return VK_FILTER_LINEAR;
+    else
+      CP_ABORT("Invalid texture filtering: %s", str.c_str());
+  }
+}