split the lifetime logic into its own package

_CoqProject

coq-lambda-rust.opam

coq-lifetime-logic.opam

lambda-rust/lang/adequacy.v

lambda-rust/lang/heap.v

lambda-rust/lang/lang.v

lambda-rust/lang/lib/arc.v

lambda-rust/lang/lib/lock.v

lambda-rust/lang/lib/memcpy.v

lambda-rust/lang/lib/new_delete.v

lambda-rust/lang/lib/spawn.v

lambda-rust/lang/lib/swap.v

lambda-rust/lang/lib/tests.v

lambda-rust/lang/lifting.v

lambda-rust/lang/notation.v

lambda-rust/lang/proofmode.v

lambda-rust/lang/races.v

lambda-rust/lang/tactics.v

lambda-rust/typing/base.v

lambda-rust/typing/bool.v