added support for container of

_CoqProject

examples/container_of.c

examples/proofs/container_of/dune

examples/proofs/container_of/generated_code.v

...s/proofs/container_of/generated_proof_container_of_test.v

examples/proofs/container_of/generated_spec.v

examples/proofs/container_of/proof_files

frontend/ail_to_coq.ml

frontend/coq_ast.ml

frontend/coq_pp.ml

linux/buddy_alloc.c

theories/lang/lang.v

theories/lang/lifting.v

theories/lang/notation.v

theories/lang/tactics.v

theories/typing/automation.v

theories/typing/int.v

theories/typing/own.v