update SAM defaults (.sam project file + PySAM JSON) with 5% EPC cost for 5% inflation during construction

Author: softwareengineerprogrammer

src/geophires_sam_economics/Generic_400_MWe.sam

@@ -242,7 +242,7 @@
     "pbi_oth_for_ds" : 0,
     "en_batt" : 0,
     "loan_moratorium" : 0,
-    "total_installed_cost" : 1532780000,
+    "total_installed_cost" : 1609419000,
     "salvage_percentage" : 50,
     "construction_financing_cost" : 0,
     "depr_stabas_method" : 1,

src/geophires_x/sam_economics/Generic_400_MWe/Generic_400_MWe.json

@@ -194,7 +194,7 @@
 	"pbi_oth_for_ds" : 0,
 	"en_batt" : 0,
 	"loan_moratorium" : 0,
-	"total_installed_cost" : 1532780000,
+	"total_installed_cost" : 1609419000,
 	"salvage_percentage" : 50,
 	"construction_financing_cost" : 0,
 	"depr_stabas_method" : 1,