Change names for bor_persistent.

theories/lifetime/lifetime.v

theories/typing/borrow.v

theories/typing/lib/arc.v

theories/typing/lib/mutex/mutexguard.v

theories/typing/lib/rc/rc.v

theories/typing/lib/rc/weak.v

theories/typing/lib/refcell/ref.v

theories/typing/lib/refcell/refmut.v

theories/typing/lib/refcell/refmut_code.v

theories/typing/lib/rwlock/rwlockreadguard.v

theories/typing/lib/rwlock/rwlockwriteguard.v

theories/typing/lib/rwlock/rwlockwriteguard_code.v

theories/typing/own.v

theories/typing/type.v

theories/typing/uniq_bor.v