Include closing method in anchor

[dr-orlovsky]

No description provided.

[zoedberg]

@dr-orlovsky after merging this v0.11 branches do not compile anymore, specifically psbt compilation is now failing with the following error:

error[E0061]: this function takes 3 arguments but 2 arguments were supplied
  --> /home/zoe/.cargo/git/checkouts/bp-std-bb8eef8e595b34fb/79cee68/psbt/src/csval/dbc.rs:83:12
   |
83 |         Ok(Anchor::new(mpc_proof, dbc_proof))
   |            ^^^^^^^^^^^---------------------- an argument of type `Method` is missing
   |
note: associated function defined here
  --> /home/zoe/.cargo/git/checkouts/bp-core-448b0ccbc7196e74/95f0ad8/dbc/src/anchor.rs:83:12
   |
83 |     pub fn new(mpc_proof: L, dbc_proof: D, method: M) -> Self {
   |            ^^^
help: provide the argument
   |
83 |         Ok(Anchor::new(mpc_proof, dbc_proof, /* Method */))
   |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For more information about this error, try `rustc --explain E0061`.
error: could not compile `psbt` (lib) due to 1 previous error

[dr-orlovsky]

Sorry, somehow update in my IDE hasn't happened. Anyway, fixed now - just update the last tip of all v0.11 branches