..opibuilder.examples: new plugin to provide an extendable mechanism to
add examples for CS-Stupdio applications

Change-Id: Ida450b9c69df6935266a85f233cf48fc4871e0de
..opibuilder.examples: switch to using the new examples infrastructure

Change-Id: I6a78d21669f910692055dbd17c6be8bf586a8545
..opibuilder.samples: delete the deprecated plugin, the functionality
has been moved to o.c.examples

Change-Id: Iec69e1c6a2012cb094fabbf0b2bc2c620f61cacf
Merge branch '3.2.x' of ssh://git@github.com/ControlSystemStudio/cs-studio.git into 3.2.x