Create top-level POM for ICE + BATS refactoring

Created by: marshallmcdonnell

Fixes #488

Work includes:

• Moving the org.eclipse.ice.build pom.xml to the top-level of the project
• Removing the org.eclipse.ice.build package entirely
• Modifying BATS so you no longer need to have the docker:build if you do mvn clean docker:build verify (now just need mvn clean verify
• Removed BATS sub-module from the top-level pom.xml default profile
• Added a full profile to top-level pom.xml that includes building ICE with BATS (requires Docker)

To test:

1. Ensure can build ICE at the top-level using mvn clean verify and/or mvn clean install
2. When doing this, ensure BATS is NOT built
3. Now, with Docker installed, go to org.eclipse.ice.bats module and run mvn clean verify. Should see that a Fuseki docker image is built in the pre-integration-test phase and the integration tests run.
4. Go back to the top-level of ICE and now run the full profile so we including building BATS. Run mvn clean verify -P full and/or mvn clean install -P full. Ensure BATS is built.