Move solution and projects to src

src/Ryujinx.Graphics.Vulkan/Shaders/ColorClearFFragmentShaderSource.frag

@@ -0,0 +1,9 @@
+#version 450 core
+
+layout (location = 0) in vec4 clear_colour;
+layout (location = 0) out vec4 colour;
+
+void main()
+{
+    colour = clear_colour;
+}