Upgrade wasm-opt to 0.111.0

[brson]

This upgrades binaryen to version 111.

Binaryen (and wasm-opt) now enables the SignExt and MutableGlobals features by default, which are also enabled in the LLVM backend. In the future Binaryen will align its default feature selection with the LLVM backend.

This is probably is ok for cargo-contract - I assume, but don't know, that the substrate wasm vm allows these two common features.

This also points to potential future optimizations by explicitly turning on more features that the substrate vm supports, but aren't being enabled in wasm-opt.

The changelog for 0.111.0.

I see that the cargo-contract current version is a beta. If a major release is impending, it might be prudent to delay merging this.

[Robbepop]

SignExt and MutableGlobals Wasm proposals are supported by the newer wasmi versions but need to be enabled by pallet-contracts.

The pallet-contracts needs to be updated though to enable those features for wasmi.
Also SignExt introduces a few new instructions that need to be registered in the gas cost model.

[ascjones]

Apologies @brson, I was a bit trigger happy merging this and failed to read your description properly. However I did look at the release notes which mention mvp_features_only. So rather than just revert to 110 I have added that #891. What do you think?

[brson]

@ascjones I asked the binaryen developers about this and they said that mvp_features_only should behave the same way wrt features as binaryen 110, and that looks to be true to me. I think it should accomplish what you want.