Added cascaded shadow mapping example

data/shaders/shadowmappingcascade/debugshadowmap.frag

@@ -0,0 +1,17 @@
+#version 450
+
+layout (binding = 1) uniform sampler2DArray shadowMap;
+
+layout (location = 0) in vec2 inUV;
+
+layout (location = 0) out vec4 outFragColor;
+
+layout(push_constant) uniform PushConsts {
+	uint cascadeIndex;
+} pushConsts;
+
+void main() 
+{
+	float depth = texture(shadowMap, vec3(inUV, float(pushConsts.cascadeIndex))).r;
+	outFragColor = vec4(vec3((depth)), 1.0);
+}