Replace module :ebr in favour of :3rd-party

* bump Gradle to version 5.6.3,
* replace module ebr with a stub,
* streamline junit usage,
* rework FileMovingArtifactStoreTests,
* remove unused import in BundleUtils,
* switch to maven central for
** hibernate, javax.inject,
** commons-codec, comons-cli,
* remove taglib.standard from VTS and
* bump portlet-api to 3.0.1.

Note: This commit imports springframework lang/util into

Change-Id: I0723197636e90cb806c242c8090297bae5fa7070
196 files changed