chore: add vendor dependencies for kauma build

vendor/base64/Cargo.toml

@@ -0,0 +1,85 @@
+# 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 = "2018"
+rust-version = "1.48.0"
+name = "base64"
+version = "0.22.1"
+authors = ["Marshall Pierce <marshall@mpierce.org>"]
+description = "encodes and decodes base64 as bytes or utf8"
+documentation = "https://docs.rs/base64"
+readme = "README.md"
+keywords = [
+    "base64",
+    "utf8",
+    "encode",
+    "decode",
+    "no_std",
+]
+categories = ["encoding"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/marshallpierce/rust-base64"
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]
+
+[profile.bench]
+debug = 2
+
+[profile.test]
+opt-level = 3
+
+[[example]]
+name = "base64"
+required-features = ["std"]
+
+[[test]]
+name = "tests"
+required-features = ["alloc"]
+
+[[test]]
+name = "encode"
+required-features = ["alloc"]
+
+[[bench]]
+name = "benchmarks"
+harness = false
+required-features = ["std"]
+
+[dev-dependencies.clap]
+version = "3.2.25"
+features = ["derive"]
+
+[dev-dependencies.criterion]
+version = "0.4.0"
+
+[dev-dependencies.once_cell]
+version = "1"
+
+[dev-dependencies.rand]
+version = "0.8.5"
+features = ["small_rng"]
+
+[dev-dependencies.rstest]
+version = "0.13.0"
+
+[dev-dependencies.rstest_reuse]
+version = "0.6.0"
+
+[dev-dependencies.strum]
+version = "0.25"
+features = ["derive"]
+
+[features]
+alloc = []
+default = ["std"]
+std = ["alloc"]