workspace: add Rust EFI infrastructure

This bumps rules_rust, cleans up the toolchains with the new version.
It also adds the Prost codegen to "normal" crate set as well as a new
crate set specific to EFI. This is separate because of Rust no-std's
dependence on create feature tags.

Change-Id: Ie76e66ee83696948391420ca3b011a3a71258690
Reviewed-on: https://review.monogon.dev/c/monogon/+/2202
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/third_party/rust/cargo/remote/BUILD.tungstenite-0.20.1.bazel b/third_party/rust/cargo/remote/BUILD.tungstenite-0.20.1.bazel
new file mode 100644
index 0000000..e25da34
--- /dev/null
+++ b/third_party/rust/cargo/remote/BUILD.tungstenite-0.20.1.bazel
@@ -0,0 +1,87 @@
+"""
+@generated
+cargo-raze crate build file.
+
+DO NOT EDIT! Replaced on runs of cargo-raze
+"""
+
+# buildifier: disable=load
+load("@bazel_skylib//lib:selects.bzl", "selects")
+
+# buildifier: disable=load
+load(
+    "@rules_rust//rust:defs.bzl",
+    "rust_binary",
+    "rust_library",
+    "rust_proc_macro",
+    "rust_test",
+)
+
+package(default_visibility = [
+    # Public for visibility by "@raze__crate__version//" targets.
+    #
+    # Prefer access through "//third_party/rust/cargo", which limits external
+    # visibility to explicit Cargo.toml dependencies.
+    "//visibility:public",
+])
+
+licenses([
+    "notice",  # MIT from expression "MIT OR Apache-2.0"
+])
+
+# Generated Targets
+
+# Unsupported target "buffer" with type "bench" omitted
+
+# Unsupported target "write" with type "bench" omitted
+
+# Unsupported target "autobahn-client" with type "example" omitted
+
+# Unsupported target "autobahn-server" with type "example" omitted
+
+# Unsupported target "callback-error" with type "example" omitted
+
+# Unsupported target "client" with type "example" omitted
+
+# Unsupported target "server" with type "example" omitted
+
+# Unsupported target "srv_accept_unmasked_frames" with type "example" omitted
+
+rust_library(
+    name = "tungstenite",
+    srcs = glob(["**/*.rs"]),
+    crate_features = [
+        "data-encoding",
+        "handshake",
+        "http",
+        "httparse",
+        "sha1",
+        "url",
+    ],
+    crate_root = "src/lib.rs",
+    data = [],
+    edition = "2018",
+    rustc_flags = [
+        "--cap-lints=allow",
+    ],
+    tags = [
+        "cargo-raze",
+        "crate-name=tungstenite",
+        "manual",
+    ],
+    version = "0.20.1",
+    # buildifier: leave-alone
+    deps = [
+        "@raze__byteorder__1_4_3//:byteorder",
+        "@raze__bytes__1_5_0//:bytes",
+        "@raze__data_encoding__2_4_0//:data_encoding",
+        "@raze__http__0_2_9//:http",
+        "@raze__httparse__1_8_0//:httparse",
+        "@raze__log__0_4_20//:log",
+        "@raze__rand__0_8_5//:rand",
+        "@raze__sha1__0_10_6//:sha1",
+        "@raze__thiserror__1_0_49//:thiserror",
+        "@raze__url__2_4_1//:url",
+        "@raze__utf_8__0_7_6//:utf_8",
+    ],
+)