chore: add vendor dependencies for kauma build

vendor/memchr/Cargo.toml

@@ -0,0 +1,95 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2021"
+rust-version = "1.61"
+name = "memchr"
+version = "2.7.4"
+authors = [
+    "Andrew Gallant <jamslam@gmail.com>",
+    "bluss",
+]
+build = false
+exclude = [
+    "/.github",
+    "/benchmarks",
+    "/fuzz",
+    "/scripts",
+    "/tmp",
+]
+autobins = false
+autoexamples = false
+autotests = false
+autobenches = false
+description = """
+Provides extremely fast (uses SIMD on x86_64, aarch64 and wasm32) routines for
+1, 2 or 3 byte search and single substring search.
+"""
+homepage = "https://github.com/BurntSushi/memchr"
+documentation = "https://docs.rs/memchr/"
+readme = "README.md"
+keywords = [
+    "memchr",
+    "memmem",
+    "substring",
+    "find",
+    "search",
+]
+license = "Unlicense OR MIT"
+repository = "https://github.com/BurntSushi/memchr"
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]
+
+[profile.bench]
+debug = 2
+
+[profile.release]
+debug = 2
+
+[profile.test]
+opt-level = 3
+debug = 2
+
+[lib]
+name = "memchr"
+path = "src/lib.rs"
+bench = false
+
+[dependencies.compiler_builtins]
+version = "0.1.2"
+optional = true
+
+[dependencies.core]
+version = "1.0.0"
+optional = true
+package = "rustc-std-workspace-core"
+
+[dependencies.log]
+version = "0.4.20"
+optional = true
+
+[dev-dependencies.quickcheck]
+version = "1.0.3"
+default-features = false
+
+[features]
+alloc = []
+default = ["std"]
+libc = []
+logging = ["dep:log"]
+rustc-dep-of-std = [
+    "core",
+    "compiler_builtins",
+]
+std = ["alloc"]
+use_std = ["std"]