Filled in presign method more, ready for main work.

### Pull Request
Still needs to be completed.

`preSignUrl`

Old library method in LMS Host

```
Using Client As Amazon.S3.AmazonS3 = Amazon.AWSClientFactory.CreateAmazonS3Client()
	Dim Request = New Amazon.S3.Model.GetPreSignedUrlRequest With {
			.BucketName = S3Bucket,
			.Key = S3ObjectKey,
			.Protocol = Protocol,
			.Verb = Verb,
			.Expires = CalculateURLExpiry(ExpiresIn)
		}
	GetS3PreSignedURL = Client.GetPreSignedURL(Request)
End Using
```