Added ImGui.NET

Start working on controller.

Nerfed.Runtime/Gui/Shaders/generate-spirv.bat

@@ -0,0 +1,2 @@
+glslangvalidator -V imgui-vertex.glsl -o imgui-vertex.spv -S vert
+glslangvalidator -V imgui-frag.glsl -o imgui-frag.spv -S frag

Nerfed.Runtime/Gui/Shaders/imgui-frag.glsl

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+#version 450
+
+layout (location = 0) in vec4 color;
+layout (location = 1) in vec2 texCoord;
+
+layout(set = 2, binding = 0) uniform sampler2D Sampler;
+
+layout (location = 0) out vec4 outputColor;
+
+void main()
+{
+    outputColor = color * texture(Sampler, texCoord);
+}

Nerfed.Runtime/Gui/Shaders/imgui-vertex.glsl

@@ -0,0 +1,20 @@
+#version 450
+
+layout (location = 0) in vec2 in_position;
+layout (location = 1) in vec2 in_texCoord;
+layout (location = 2) in vec4 in_color;
+
+layout (set = 1, binding = 0) uniform ProjectionMatrixBuffer
+{
+    mat4 projection_matrix;
+};
+
+layout (location = 0) out vec4 color;
+layout (location = 1) out vec2 texCoord;
+
+void main() 
+{
+    gl_Position = projection_matrix * vec4(in_position, 0, 1);
+    color = in_color;
+    texCoord = in_texCoord;
+}