chore: aztec-macros refactor (AztecProtocol/aztec-packages#5127)

Partially addresses
AztecProtocol/aztec-packages#5080

Until we have full macro support in noir, this PR aims to make using
what we currently have a little bit less painful.
The crate is now divided into utils of several kind (ast manipulation,
error handling, hir manipulation...) and transforms.

A transform is an end-to-end modification to the noir code that
generates a valid compilation result from a given contract. This makes
it easier to manipulate (and hopefully soon, replace) said modifications
atomically, improving readability.

This also modifies the first macro pass to iterate over all crates, not
only the root one, which allows us to implement more stuff without
having to dig deep into the def collector or (god forbid) the interner.

The second macro pass has been renamed to `process_collected_defs`.
Tried to generalize it a bit more, but providing a mutable ref for the
whole `def_collector` turned out to be tricky without cloning
`def_maps`, so it's staying like it is now.

.aztec-sync-commit

@@ -1 +1 @@
-7ff9b71d8d87fc93ae7dbd8ba63f5176b0cd17be
+2195441afde4d6e78ad0c6027d0a7dbc8671817d

Cargo.toml

@@ -26,6 +26,7 @@ members = [
     "tooling/nargo_toml",
     "tooling/noirc_abi",
     "tooling/noirc_abi_wasm",
+    "tooling/acvm_cli",
     # ACVM
     "acvm-repo/acir_field",
     "acvm-repo/acir",
@@ -36,7 +37,7 @@ members = [
     "acvm-repo/blackbox_solver",
     "acvm-repo/bn254_blackbox_solver",
 ]
-default-members = ["tooling/nargo_cli"]
+default-members = ["tooling/nargo_cli", "tooling/acvm_cli"]
 resolver = "2"
 
 [workspace.package]
@@ -78,6 +79,7 @@ noir_lsp = { path = "tooling/lsp" }
 noir_debugger = { path = "tooling/debugger" }
 noirc_abi = { path = "tooling/noirc_abi" }
 bb_abstraction_leaks = { path = "tooling/bb_abstraction_leaks" }
+acvm_cli = { path = "tooling/acvm_cli" }
 
 # LSP
 async-lsp = { version = "0.1.0", default-features = false }