Add query by example support to DynamicFinder

[Riduidel]

It may seem complicated but is not.

The goal is to generate a query from a template object, by using query operations specified on each field of query object. It should perfectly fit, to my mind, the concepts expressed in DynamicFinder by adding support for all *FromExample queries :

• findAllFromExample
• findRangeFromExample
• countFromExample

....

with set of parameter defined according to standard DynamicFinder rules.

[Riduidel]

This should in fact be also supported in non dynamic query. i'm thinking about something like

 myService().find().matching(myExampleBean).count();

It should be enough, no ?