EDGE-T Validation Output - Fix

Created by: Loisel

• fixes the EDGE-T (edge_esm module) validation generation. Validation PDF can be generated by using output.R. Functionality was broken due to recent changes wrt the reporting facilities to be run on the compute nodes.
• EDGE-T is now ran once again in the output phase of REMIND, generating data to be used for validation and reporting.
• Changes to the EDGE_transport.R script infered changes to calling signatures in edgeTrpLib library, so this has to be updated as well.
• MIF-wise reporting is not yet updated, this will come later.

scripts/iterative/EDGE_transport.R

@@ -96,7 +96,7 @@ ES_demand = ES_demand[sector == "trn_pass",]
 
 
 
-if (file.exists("demand_previousiter.RDS")) {
+if (file.exists(datapath("demand_previousiter.RDS"))) {
   ## load previous iteration number of cars
   demand_BEVtmp = readRDS(datapath("demand_BEV.RDS"))
   ## load previous iteration demand