tests/resource/aws_batch_job_definition: Fix TestAccAWSBatchJobDefini…

…tion_basic ContainerProperties comparison to match updated API response

Previously:

```
--- FAIL: TestAccAWSBatchJobDefinition_basic (5.36s)
    testing.go:640: Step 0 error: Check failed: Check 2/2 error: Bad Job Definition Container Properties
        	 expected: {
          Command: ["ls","-la"],
          Environment: [{
              Name: "VARNAME",
              Value: "VARVAL"
            }],
          Image: "busybox",
          Memory: 512,
          MountPoints: [{
              ContainerPath: "/tmp",
              ReadOnly: false,
              SourceVolume: "tmp"
            }],
          Ulimits: [{
              HardLimit: 1024,
              Name: "nofile",
              SoftLimit: 1024
            }],
          Vcpus: 1,
          Volumes: [{
              Host: {
                SourcePath: "/tmp"
              },
              Name: "tmp"
            }]
        }
        	got: {
          Command: ["ls","-la"],
          Environment: [{
              Name: "VARNAME",
              Value: "VARVAL"
            }],
          Image: "busybox",
          Memory: 512,
          MountPoints: [{
              ContainerPath: "/tmp",
              ReadOnly: false,
              SourceVolume: "tmp"
            }],
          ResourceRequirements: [],
          Ulimits: [{
              HardLimit: 1024,
              Name: "nofile",
              SoftLimit: 1024
            }],
          Vcpus: 1,
          Volumes: [{
              Host: {
                SourcePath: "/tmp"
              },
              Name: "tmp"
            }]
        }
```

Output from acceptance testing:

```
--- PASS: TestAccAWSBatchJobDefinition_basic (15.23s)
--- PASS: TestAccAWSBatchJobDefinition_updateForcesNewResource (26.75s)
```

aws/resource_aws_batch_job_definition_test.go

@@ -37,16 +37,17 @@ func TestAccAWSBatchJobDefinition_basic(t *testing.T) {
 			MountPoints: []*batch.MountPoint{
 				{ContainerPath: aws.String("/tmp"), ReadOnly: aws.Bool(false), SourceVolume: aws.String("tmp")},
 			},
+			ResourceRequirements: []*batch.ResourceRequirement{},
 			Ulimits: []*batch.Ulimit{
 				{HardLimit: aws.Int64(int64(1024)), Name: aws.String("nofile"), SoftLimit: aws.Int64(int64(1024))},
 			},
+			Vcpus: aws.Int64(int64(1)),
 			Volumes: []*batch.Volume{
 				{
 					Host: &batch.Host{SourcePath: aws.String("/tmp")},
 					Name: aws.String("tmp"),
 				},
 			},
-			Vcpus: aws.Int64(int64(1)),
 		},
 	}
 	ri := acctest.RandInt()