added selenium test framework and suites to project

added two selenium projects
those are to be opened as maven project as we cannot distribute dependencies ourselves

this patch removes completely the use of an absolute target folder as a staging area, 
reverting to maven default, because:
- test project use the java API so to have the latest must be part of the same reactor build
- eclipse doesn't understand projects with non standard target folder
- the absolute target folder from the parent was inherited by the test project, being in the same pom tree.