[WIP][PyROOT] Add test checking loaded libraries after import

[stwunsch]

No description provided.

[phsft-bot]

Starting build on ROOT-debian10-i386/cxx14, ROOT-performance-centos7-multicore/default, ROOT-fedora29/python3, ROOT-fedora30/cxx14, ROOT-fedora31/noimt, ROOT-ubuntu16/nortcxxmod, mac1015/cxx17, windows10/cxx14
How to customize builds

[phsft-bot]

Build failed on ROOT-fedora31/noimt.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-fedora30/cxx14.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-performance-centos7-multicore/default.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-fedora29/python3.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-ubuntu16/nortcxxmod.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on mac1015/cxx17.
See cdash See console output.

Failing tests:

• projectroot.roottest.root.multicore.roottest_root_multicore_tclass_methods_libgen_build
• projectroot.roottest.root.multicore.roottest_root_multicore_fork
• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-debian10-i386/cxx14.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Starting build on ROOT-debian10-i386/cxx14, ROOT-performance-centos7-multicore/default, ROOT-fedora29/python3, ROOT-fedora30/cxx14, ROOT-fedora31/noimt, ROOT-ubuntu16/nortcxxmod, mac1015/cxx17, windows10/cxx14
How to customize builds

[phsft-bot]

Build failed on ROOT-fedora31/noimt.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-fedora30/cxx14.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-performance-centos7-multicore/default.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-fedora29/python3.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-ubuntu16/nortcxxmod.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on mac1015/cxx17.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[phsft-bot]

Build failed on ROOT-debian10-i386/cxx14.
See cdash See console output.

Failing tests:

• projectroot.bindings.pyroot_experimental.pythonizations.test.pyunittests_pyroot_import_load_libs

[stwunsch]

Move the commit to PR #5252 to integrate the test with the root cause of the issue