addings first types

evrouting/T.py

+from typing import NewType, Tuple
+
+Node = NewType('Node', int)
+Edge = NewType('Edge', Tuple[Node, Node])
+SoC = NewType('SoC', float)
\ No newline at end of file

evrouting/charge/T.py

+from typing import NewType, Callable
+
+from evrouting.T import SoC
+
+SoCProfile = NewType('SoCProfile', Callable[[SoC], SoC])