New interior, alt-e to go straight to flightmode, bug fixes

This update includes a brand new custom-ported interior, which is still
W.I.P but good enough to replace the other one, alt-e is useful for maps
where the interior is inaccessible for whatever reason, or just for lazy
people who want to goto flightmode straight away. bug fixes include ACF
damaging the interior, improving precision on interior positioning and
more. The TARDIS will now force anyone who happens to be standing in its
way during teleport into the tardis.