Added temporary file for notes during meetings

Author: simoneotelie

xcoll/geometry/SimoneNotes.py

@@ -0,0 +1,10 @@
+This will be deleted later
+
+Todo: 
+* Need to fix the slicing box. Deadlock + some bug
+* Connect with Everest & Nuclear interactions. Figure out how to connect path length to scattering through probability
+* test test test
+
+Small todo:
+* Possibly move the crossings folder to scattering part of Xcoll
+* Rename FindRoot to something thats more generic and explains both crossings AND path length