Added _LOCAL_SHADOWS_ENABLED keyword

ScriptableRenderPipeline/LightweightPipeline/LWRP/LightweightPipeline.cs

 
             bool shadowsEnabled = m_ShadowPass.HasDirectionalShadowmap || m_ShadowPass.HasLocalLightsShadowmap;
             CoreUtils.SetKeyword(cmd, "_SHADOWS_ENABLED", shadowsEnabled);
-
-            // TODO: Currently we are shading same keyword for directional and local lights
-            // When we have ability to strip keywords we can use the one below instead
-            //CoreUtils.SetKeyword(cmd, "_SHADOWS_ENABLED", m_ShadowPass.HasDirectionalShadowmap);
-            //CoreUtils.SetKeyword(cmd, "_LOCAL_SHADOWS_ENABLED", m_ShadowPass.HasLocalLightsShadowmap);
+            CoreUtils.SetKeyword(cmd, "_LOCAL_SHADOWS_ENABLED", m_ShadowPass.HasLocalLightsShadowmap);
 
             //TIM: Not used in shader for V1 to reduce keywords
             CoreUtils.SetKeyword(cmd, "_MAIN_LIGHT_COOKIE", mainLightIndex != -1 && LightweightUtils.IsSupportedCookieType(visibleLights[mainLightIndex].lightType) && visibleLights[mainLightIndex].light.cookie != null);

ScriptableRenderPipeline/LightweightPipeline/LWRP/LightweightShadowPass.cs

         {
             // Until we can have keyword stripping forcing single cascade hard shadows on gles2
             bool supportsScreenSpaceShadows = SystemInfo.graphicsDeviceType != GraphicsDeviceType.OpenGLES2;
-            bool supportsLocalShadows = Application.isMobilePlatform || Application.platform == RuntimePlatform.WebGLPlayer;
+
+            // TODO: Add pipeline setting for this when we oficially add support to multiple shadow casting lights
+            bool supportsLocalShadows = true;
 
             m_ShadowSettings = ShadowSettings.Default;
             m_ShadowSettings.directionalShadowQuality = (LightShadows)pipelineAsset.ShadowSetting;

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Shadows.hlsl

 
 half LocalLightRealtimeShadowAttenuation(int lightIndex, float3 positionWS)
 {
-// TODO: We can't add more keywords to standard shaders. For now we use
-// same _SHADOWS_ENABLED keywords for local lights. In the future we can use
-// _LOCAL_SHADOWS_ENABLED keyword
-// For now disabling local shadows on mobile until we can get the keyword stripping
-//#if defined(NO_SHADOWS) || !defined(_LOCAL_SHADOWS_ENABLED)
-#if defined(NO_SHADOWS) || !defined(_SHADOWS_ENABLED) || defined(SHADER_API_MOBILE)
+#if defined(NO_SHADOWS) || !defined(_LOCAL_SHADOWS_ENABLED)
     return 1.0h;
 #else
     float4 shadowCoord = mul(_LocalWorldToShadowAtlas[lightIndex], float4(positionWS, 1.0));

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandard.shader

             #pragma multi_compile _ _VERTEX_LIGHTS
             #pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
             #pragma multi_compile _ _SHADOWS_ENABLED
-
-            // TODO: Enabled this when we have C# keyword stripping
-            //#pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
+            #pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
 
             // -------------------------------------
             // Unity defined keywords

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandardSimpleLighting.shader

             #pragma multi_compile _ _VERTEX_LIGHTS
             #pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
             #pragma multi_compile _ _SHADOWS_ENABLED
-
-            // TODO: Enabled this when we have C# keyword stripping
-            //#pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
+            #pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
 
             // -------------------------------------
             // Unity defined keywords

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/Terrain/LightweightStandardTerrainBase.shader

             #pragma multi_compile _ _VERTEX_LIGHTS
             #pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
             #pragma multi_compile _ _SHADOWS_ENABLED
-
-            // TODO: Enabled this when we have C# keyword stripping
-            //#pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
+            #pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
 
             // -------------------------------------
             // Unity defined keywords

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/Terrain/LightweightWavingGrass.shader

             #pragma multi_compile _ _VERTEX_LIGHTS
             #pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
             #pragma multi_compile _ _SHADOWS_ENABLED
-
-            // TODO: Enabled this when we have C# keyword stripping
-            //#pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
+            #pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
 
             // -------------------------------------
             // Unity defined keywords

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/Terrain/LightweightWavingGrassBillboard.shader

             #pragma multi_compile _ _VERTEX_LIGHTS
             #pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
             #pragma multi_compile _ _SHADOWS_ENABLED
-
-            // TODO: Enabled this when we have C# keyword stripping
-            //#pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
+            #pragma multi_compile _ _LOCAL_SHADOWS_ENABLED
 
             // -------------------------------------
             // Unity defined keywords