run: run tests with TAP::Harness, consuming TAP from run-op-bvt/run-op-it
run: run tests with TAP::Harness, consuming TAP from run-op-bvt/run-op-it

This gets us a really pretty printed summary of test run output, and also
enables us to use other TAP::Harness::Formatter classes in the future
(e.g. zero-effort HTML reports) - even though currently we just use the
(COLOR!) terminal output.

Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

open-power/op-test-framework,open-power/op-test-framework,open-power/op-test-framework