Adds .gitignore to o.e.s.event.queues plugin.
Adds .gitignore to o.e.s.event.queues plugin.

Signed-off-by: Michael Wharmby <6d9b938fb052d7fc89d498105ee5ecd048aae550@diamond.ac.uk>

Mark-Booth/daq-eclipse,Mark-Booth/daq-eclipse,Mark-Booth/daq-eclipse