Update of Inner Detector Performance Parameterisations

This note describes the changes and additions made to the Inner Detector perform-ance parameterisations previously discussed in ATLAS-INDET-NOTE 195. It also serves as a users' guide in conjunctio n with this note. Pion and electron smearing has been added and now includes tails as measured by full DICE-simulations. Ef-ficiency routines for all particles, also based on DICE-simulation res ults, are avail-able for several sets of standardised cuts. Pion smearing is also available for pions from the decays of V0s. These parameterisations can be used immediately within the context of ATLFAST or in a standalone mode. The main user routines have been given a new set of input parameters improving the consistency with ATLFAST.