Use `TryBTreeMap` in the store's `ModuleRegistry` (#12846)

Debugging: apply single-stepping patches to modules instantiated after setting changes. (#12663)

We currently do a store-wide state-change on all registered modules
when the "single stepping" flag c

Debugging: apply single-stepping patches to modules instantiated after setting changes. (#12663)

We currently do a store-wide state-change on all registered modules
when the "single stepping" flag changes, patching in or out all
breakpoints. However, this design didn't account for modules
registered with the store *after* single-stepping is enabled (and new
modules may be registered any time an instantiation occurs). In
particular this is problematic when a debugger, e.g., sets the
single-step flag right at the beginning of execution of a "host main
function" that calls Wasm, before the main instantiation occurs.

This PR threads through the breakpoint state in the registration path,
with the narrow waist at `ModuleRegistry::register` which is the only
place where modules are added to the `LoadedCode`.

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Migrate the `wasmtime` crate to `wasmtime_environ::error::*` (#12231)

* Migrate the `wasmtime` crate to `wasmtime_environ::error::*`

Instead of `anyhow::Error`.

This commit re-exports the `wasmtim

Migrate the `wasmtime` crate to `wasmtime_environ::error::*` (#12231)

* Migrate the `wasmtime` crate to `wasmtime_environ::error::*`

Instead of `anyhow::Error`.

This commit re-exports the `wasmtime_environ::error` as the `wasmtime::error`
module, updates the prelude to include these new error-handling types, redirects
our top-level `wasmtime::{Error, Result}` re-exports to re-export
`wasmtime::error::{Error, Result}`, and updates various use sites that were
directly using `anyhow` to use the new `wasmtime` versions.

This process also required updating the component macro and wit-bindgen macro to
use the new error types instead of `anyhow`.

Part of https://github.com/bytecodealliance/wasmtime/issues/12069

* Replace wasmtime::error::Thing with wasmtime::Thing where it makes sense

* cargo fmt

* Move `crate::error::Thing` to `crate::Thing` where it makes sense

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