Revert "Revert^2 "Add extension and agent for dumping internal jvmti plugin data.""

This reverts commit 2d8b8119228bbe4202490b1d5fed6191989d5d83.

Reason for revert: Fails jdwp tests.

Change-Id: I0577fd82df161183ccd73eaf61cbe6bf871ef410
8 files changed