Warning + new Features + bug fix from last pull request 

# warning 
test that pull request on a sperate branch before merging

# bug fix
- fix epwr / sens dictionnary bug in network.py

# new feature
- simulnet in ipython notebook option
- verbose mode on/off

# Load update 
- self.tahe and self.pt are now updated with Layout.g2npy()
- Added material,slab and furniture in the 'files' section of   used_layout.ini