AWS SQS trigger

List of issues
KeySummaryCreatedUpdated
#8Update AWS SQS trigger plugin to use AWS SDK for Java 2.x
#7Declarative Jenkinsfile
#6Parameters for Multibranch Pipeine
#5Do not make AWSCredentials if credentialsId is null, instead pass null to constructor
#4NullPointer Exception when credential is not set because instance role is used to authenticate to SQS
#3Upgrade HtmlUnit from 2.x to 3.x
#1Use the aws-java-sdk-sqs packaged in a plugin rather than packaging the lib directly