Fix (not really) problems reported by VSCode (#2790)

VSCode reports `main redeclared` between allocationload.go and
runscenario.go due to the fact that they both look like `package main`
binaries in the same directory, similar e.g. [this poster on a
different
project](https://stackoverflow.com/questions/66970531/vs-code-go-main-redeclared-in-this-block)

To fix it, it's easy enough to just give these binaries their own
package path and fix up the calling scripts.

Along the way, fix a lint complaint in runscenario.go

test/load/allocation/runAllocation.sh

@@ -31,7 +31,7 @@ counter=1
 while [ $counter -le $TESTRUNSCOUNT ]
 do
     echo "Run number: " $counter
-    go run allocationload.go --ip ${EXTERNAL_IP} --port 443 --namespace ${NAMESPACE} --key ${KEY_FILE} --cert ${CERT_FILE} --cacert ${TLS_CA_FILE} --numberofclients $1 --perclientallocations $2 2>>./allocation_test_results.txt
+    go run allocationload/allocationload.go --ip ${EXTERNAL_IP} --port 443 --namespace ${NAMESPACE} --key ${KEY_FILE} --cert ${CERT_FILE} --cacert ${TLS_CA_FILE} --numberofclients $1 --perclientallocations $2 2>>./allocation_test_results.txt
     sleep 1200
     ((counter++))
 done

test/load/allocation/runScenario.sh

@@ -31,6 +31,6 @@ CERT_FILE=${CERT_FILE:-client.crt}
 TLS_CA_FILE=${TLS_CA_FILE:-ca.crt}
 MULTICLUSTER=${MULTICLUSTER:-false}
 
-go run runscenario.go --ip ${EXTERNAL_IP} --namespace ${NAMESPACE} \
+go run runscenario/runscenario.go --ip ${EXTERNAL_IP} --namespace ${NAMESPACE} \
   --key ${KEY_FILE} --cert ${CERT_FILE} --cacert ${TLS_CA_FILE} \
   --scenariosFile ${1}

test/load/allocation/runscenario.go → test/load/allocation/runscenario/runscenario.go

@@ -212,7 +212,7 @@ func readScenarios(file string) *[]scenario {
 	if err != nil {
 		logger.Fatalf("Failed opening the scenario  file %s: %v", file, err)
 	}
-	defer fp.Close()
+	defer func() { _ = fp.Close() }()
 
 	var scenarios []scenario