Issue: "Dev Common: Commit third party libraries"
url-> https://github.com/Ivan-Zhukau/conforg-desktop/issues/25 

In commit:
1) Introduce "net.ostis.confman.test" project. This project will be used
for unit tests
2) Introduce "net.ostsi.confman.lib" project. This project will be used
for storing all dependent libraries.
3) Commit log4j-1.2.17 and poi_3.9 libraries with sources.
4) Introduce confman.userlibraries (user libraries for eclipse)

 Issue #25