[GEODE-6021] Introduce Lombok

[aditya87]

Signed-off-by: Peter Tran ptran@pivotal.io

Wanted to introduce Lombok (https://projectlombok.org/) as proof-of-concept of how it can reduce the size of some classes.

We see the following advantages of using Lombok:
-> Less boilerplate code.
-> Can use builder pattern implicitly, which allows for much better composeability of an object.
-> Increased readability

More details: https://projectlombok.org/features/all

Thank you for submitting a contribution to Apache Geode.

In order to streamline the review of the contribution we ask you
to ensure the following steps have been taken:

For all changes:

• Is there a JIRA ticket associated with this PR? Is it referenced in the commit message?

• Has your PR been rebased against the latest commit within the target branch (typically develop)?

• Is your initial contribution a single, squashed commit?

• Does gradlew build run cleanly?

• Have you written or updated unit tests to verify your changes?

• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?

Note:

Please ensure that once the PR is submitted, you check travis-ci for build issues and
submit an update to your PR as soon as possible. If you need help, please send an
email to dev@geode.apache.org.

[metatype]

@aditya87 Can you poke the dev@ list with this proposed change? I think it's a big enough change to warrant discussion.

[aditya87]

Withdrawing for now. There are some risks associated with JDK10 that we need to investigate further. Further discussion on the geode-dev list.