Move Sparkler to sbt build

[karanjeets]

Issue Description

Please describe our issue, along with:

• expected behavior - should behave same what's on master
• encountered behavior - N/A

How to reproduce it

If you are describing a bug, please describe here how to reproduce it.
N/A; Maven scala build plugins are not scalable

An external links for reference

Wondering what others are thinking? - https://www.jetbrains.com/research/devecosystem-2018/scala/

[thammegowda]

@karanjeets good to see you again buddy. whats going on here with this issue?

[karanjeets]

hey @thammegowda,
I'm done with most of the work including, move pom to sbt build files, package app & plugins, exclude conflicting transitive dependencies, and resolve build issues. Left with the following items before I make a PR:

• Version Control
• CI
• sparkler-ui - this is tricky! Our current war-overlay solution may not work. I would probably go the route of git submodule and package it via sbt. Anyway they have not updated maven since 2015 :-/
• Final Testing
• Coverage (may be only if I have time ?)

This would take another 2 weeks, probably

[thammegowda]

wow that's exciting. Thanks.