Added missing script execute flags

scripts/build.sh

@@ -42,6 +42,7 @@ if [[ $_exit_code -ne 0 ]]; then
 fi
 
 echo "Generating required build tooks"
+chmod +x ./tools/build_trgen.sh
 ./tools/build_trgen.sh; _exit_code=$?
 if [[ $_exit_code -ne 0 ]]; then
     echo "Failed to build build_typescript translation generator"
@@ -64,6 +65,7 @@ fi
 
 if [[ "$build_type" == "release" ]]; then # Compile everything for release mode
     echo "Packing generated css files"
+    chmod +x ./shared/css/generate_packed.sh
     ./shared/css/generate_packed.sh; _exit_code=$?
     if [[ $_exit_code -ne 0 ]]; then
         echo "Failed to package generated css files"