[OPENENGSB-3661] implemented query OR support from the EDB point of view. Next the query parsing needs to be updated
[OPENENGSB-3661] added new QueryParser interface and moved the query parsing from QueryInterfaceService to an implementation of the new interface
[OPENENGSB-3661] added javadoc to the new classes
[OPENENGSB-3663] improved model query performance
Merge pull request #859 from Arcticwolf/OPENENGSB-3663

[OPENENGSB-3663] improved model query performance