fptl: fixed point light cookie transform

Assets/ScriptableRenderLoop/fptl/FptlLighting.cs

 					boundData[i].vScaleXY = new Vec2(1.0f, 1.0f);
 					boundData[i].fRadius = range;
 
+					// represents a left hand coordinate system in world space
+					Matrix4x4 lightToView = worldToView * lightToWorld;
+					Vector3 vx = lightToView.GetColumn(0);
+					Vector3 vy = lightToView.GetColumn(1);
+					Vector3 vz = lightToView.GetColumn(2);
+
+
+					lightData[i].vLaxisX = vx;
+					lightData[i].vLaxisY = vy;
+					lightData[i].vLaxisZ = vz;
 
 					lightData[i].flags |= (bHasCookie ? LightDefinitions.HAS_COOKIE_TEXTURE : 0);
                     lightData[i].flags |= (bHasShadow ? LightDefinitions.HAS_SHADOW : 0);

Assets/ScriptableRenderLoop/fptl/Internal-DeferredShading.shader

 
 			float4 cookieColor = float4(1,1,1,1);
 
+			float3 cookieCoord = float3(dot(vL, lgtDat.vLaxisX.xyz), dot(vL, lgtDat.vLaxisY.xyz), -dot(vL, lgtDat.vLaxisZ.xyz));
+			
-				cookieColor = UNITY_SAMPLE_TEXCUBEARRAY_LOD(_pointCookieTextures, float4(-vLw, lgtDat.iSliceIndex), 0.0);
+				cookieColor = UNITY_SAMPLE_TEXCUBEARRAY_LOD(_pointCookieTextures, float4(cookieCoord, lgtDat.iSliceIndex), 0.0);
 				atten *= cookieColor.w;
 			}
 			

Assets/ScriptableRenderLoop/fptl/renderloopfptl.asset

     directionalLightCascades: {x: 0.05, y: 0.2, z: 0.3}
   m_TextureSettings:
     spotCookieSize: 512
-    pointCookieSize: 256
+    pointCookieSize: 512
   m_DeferredShader: {fileID: 4800000, guid: 1c102a89f3460254a8c413dbdcd63a2a, type: 3}
   m_DeferredReflectionShader: {fileID: 4800000, guid: 3899e06d641c2cb4cbff794df0da536b,
     type: 3}

Assets/TestScenes/FPTL/FPTL.unity

   m_PrefabParentObject: {fileID: 0}
   m_PrefabInternal: {fileID: 0}
   m_GameObject: {fileID: 756999128}
-  m_LocalRotation: {x: -0.7251825, y: -0.5106002, z: -0.034586895, w: 0.46065348}
-  m_LocalPosition: {x: -10.009945, y: -6.4941626, z: -3}
+  m_LocalRotation: {x: 0.7071068, y: 0, z: 0, w: 0.7071068}
+  m_LocalPosition: {x: -8.2, y: -7.44, z: -5.59}
-  m_LocalEulerAnglesHint: {x: 224.703, y: -323.752, z: -85.629}
+  m_LocalEulerAnglesHint: {x: 90, y: 0, z: 0}
 --- !u!1 &942239534
 GameObject:
   m_ObjectHideFlags: 0