examples: move example notebooks in one location

As part of the lisa notebook restructure we've determined
that it's best to  have all examples of the use of available
APIs in one place.

That place is examples:
 - examples/devlib holds previous content of devlib/examples
 - examples/utils holds previous content of utils
 - examples/wlgen holds previous content of wlgen
 - examples/trappy holds previous content of trappy

todo: parts of android will also be added here in further
      commits
todo: all notebooks under examples will be reworked as to
      include more documentation to explain in more detail
      the use of the APIĀ·

Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
diff --git a/ipynb/devlib/examples/cgroups.ipynb b/ipynb/examples/devlib/cgroups.ipynb
similarity index 100%
rename from ipynb/devlib/examples/cgroups.ipynb
rename to ipynb/examples/devlib/cgroups.ipynb
diff --git a/ipynb/trappy/example_custom_events.ipynb b/ipynb/examples/trappy/example_custom_events.ipynb
similarity index 100%
rename from ipynb/trappy/example_custom_events.ipynb
rename to ipynb/examples/trappy/example_custom_events.ipynb
diff --git a/ipynb/utils/executor_example.ipynb b/ipynb/examples/utils/executor_example.ipynb
similarity index 100%
rename from ipynb/utils/executor_example.ipynb
rename to ipynb/examples/utils/executor_example.ipynb
diff --git a/ipynb/utils/testenv_example.ipynb b/ipynb/examples/utils/testenv_example.ipynb
similarity index 100%
rename from ipynb/utils/testenv_example.ipynb
rename to ipynb/examples/utils/testenv_example.ipynb
diff --git a/ipynb/wlgen/rtapp_examples.ipynb b/ipynb/examples/wlgen/rtapp_examples.ipynb
similarity index 100%
rename from ipynb/wlgen/rtapp_examples.ipynb
rename to ipynb/examples/wlgen/rtapp_examples.ipynb
diff --git a/ipynb/wlgen/simple_rtapp.ipynb b/ipynb/examples/wlgen/simple_rtapp.ipynb
similarity index 100%
rename from ipynb/wlgen/simple_rtapp.ipynb
rename to ipynb/examples/wlgen/simple_rtapp.ipynb