cli: properly build svm binaries by passing core address

Newer versions of NTT support a `bridge-address-from-env` flag, which
allows specifying the address of the Wormhole program from an
environment variable rather than relying on a pre-defined set of
addresses. We use that flag when available, and fall back to patching
the binary when it's not.

This way of detecting the cargo flag allows us to:
- build the binary properly for new versions going forward
- support building older NTT releases without modification for other
SVMs (e.g. fogo) by patching the binary
- if the `bridge-address-from-env` feature is backported to older
NTTs (should be straightforward), then the CLI will just pick up that
compilation path automatically

Author: kcsongor