refactor: redesign project structures

Package/build/Polonium.Tasks.props

@@ -8,10 +8,4 @@
             TaskName="GenerateProxyNodesTask" 
             AssemblyFile="$(CustomTasksAssembly)"
     />
-    <UsingTask
-        TaskName="GenerateTextureSetTask"
-        AssemblyFile="$(CustomTasksAssembly)"
-    />
-
-
 </Project>

Package/build/Polonium.Tasks.targets

@@ -2,4 +2,27 @@
     <Target Name="CheckCustomTasksAssembly" BeforeTargets="CoreCompile">
         <Message Text="CustomTasksAssembly: $(CustomTasksAssembly)" Importance="High" />
     </Target>
+    
+    <Target Name="CopyPoloniumTasks" AfterTargets="ResolveReferences">
+        <RemoveDir Directories="$(ProjectDir)Package/build/tasks" Condition="Exists('$(ProjectDir)Package/build/tasks')"/>
+        <MakeDir Directories="$(ProjectDir)Package/build/tasks" />
+        <ItemGroup>
+            <PoloniumTasksAssemblies Include="$(CustomTasksFolder)**/*.*"/>
+        </ItemGroup>
+        <Message Text="Copying Polonium Tasks To Target......" Importance="high"/>
+        <Copy 
+                SourceFiles="@(PoloniumTasksAssemblies)" 
+                DestinationFolder="$(ProjectDir)Package/build/tasks" 
+                SkipUnchangedFiles="true"
+        />
+    </Target>
+    
+    <ItemGroup>
+        <None 
+                Include="$(ProjectDir)Package/build/tasks/**/*"
+                Pack="true"
+                PackagePath="build/tasks"
+        />
+    </ItemGroup>
+    
 </Project>