Fix template expression for if/and/or/not
Fix template expression for if/and/or/not

Add to the pattern used for template expressions to include the new (Aug/1) if/and/or/not template functions which Ryan announced.
EvgenyAgafonchikov/azure-resource-manager-schemas,Azure/azure-resource-manager-schemas,Azure/azure-resource-manager-schemas,Azure/azure-resource-manager-schemas,Azure/azure-resource-manager-schemas,waynekuo/azure-resource-manager-schemas