Refactoring

The Planner was refactored.

```/SeaCloudsPlatform/planner/core/src/main/java/seaclouds/Planner.java``` was added for refactoring the ```SeaCloudsPlatform/planner/core/src/main/java/seaclouds/App.java```, but this was not deleted, so the last one should be removed.
The code is not clear. It is necessary delete several instructions.
There is a simple hierarchy which contains the basic functionality.
It is necessary generate wrapped for the NodeTemplates.
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Eclipse files were deleted and added to .gitignore.
A JUnit test was added.