It isn't very clear why you need this template since it is already included with Visual Studio. You select it with Project + Add New Item + General + Resources File.
If you want to customize it then your best bet is to get started with the existing one. Navigate to C:\Program Files (x86)\Microsoft Visual Studio x.x\Common7\IDE\ItemTemplatesCache\CSharp\General\1033\Resource.zip where x.x is the VS version number and 1033 might be different if you don't use the English version of VS.
I'll just post the .vstemplate file you'll find there, be sure to copy/paste the file to get started on your own:
<?xml version="1.0" encoding="utf-8"?>
<VSTemplate Version="3.0.0" Type="Item" xmlns="http://schemas.microsoft.com/developer/vstemplate/2005">
<TemplateData>
<Name Package="{FAE04EC1-301F-11d3-BF4B-00C04F79EFBC}" ID="2390" />
<Description Package="{FAE04EC1-301F-11d3-BF4B-00C04F79EFBC}" ID="2391" />
<Icon Package="{FAE04EC1-301F-11d3-BF4B-00C04F79EFBC}" ID="4565" />
<TemplateID>Microsoft.CSharp.Resource</TemplateID>
<ProjectType>CSharp</ProjectType>
<RequiredFrameworkVersion>2.0</RequiredFrameworkVersion>
<NumberOfParentCategoriesToRollUp>1</NumberOfParentCategoriesToRollUp>
<DefaultName>Resource.resx</DefaultName>
</TemplateData>
<TemplateContent>
<ProjectItem>Resource.resx</ProjectItem>
<CustomParameters>
<CustomParameter Name="$itemproperties$" Value="CustomTool" />
<CustomParameter Name="$CustomTool$" Value="ResXFileCodeGenerator" />
</CustomParameters>
</TemplateContent>
<WizardExtension>
<Assembly>Microsoft.VisualStudio.Editors, Version=9.0.0.0, Culture=Neutral, PublicKeyToken=b03f5f7f11d50a3a</Assembly>
<FullClassName>Microsoft.VisualStudio.Editors.ResourceEditor.ResxItemWizard</FullClassName>
</WizardExtension>
</VSTemplate>
If you want to add more files then add more <ProjectItem>
elements.