See JSF 2 Spec "2.6.1.4 Libraries of Localized and Versioned Resources"
In scope of this issue I planned to do:
1) check if variable locale_prefix specifyed in VPE EL, and if such variable is specified use it for calculation resource path;
2) for getting jsf2 resources in vpe implement algoritm which pseudo code specification exist in JSF 2 Spec "2.6.1.4 Libraries of Localized and Versioned Resources.