KSENROLL-14743 add .gitattributes file
KSENROLL-14743 split pull request builder scripts

run-detect-changes.sh is run by jenkins first to find out if there are impex
changes and which modules have code changes.

This gives a change to spin up the seperate build jobs for:
1. overall unit tests
2. per module unit tests

Then run-builder.sh is used to resume processing on the current build slave.

It will checkout the pull request commit.

Later it will run the manual impex process if needed and then startup the smoke
test all in one aft's.
KSENROLL-14743 Bump up the git-workflow plugin version to 0.0.6