Update nitrokey crate to 0.4.0

This change finally updates the version of the nitrokey crate that we
consume to 0.4.0. Along with that we update rand_core, one of its
dependencies, to 0.5.1. Further more we add cfg-if in version 0.1.10 and
getrandom in version 0.1.13, both of which are now new (non-development)
dependencies.

Import subrepo nitrokey/:nitrokey at e81057037e9b4f370b64c0a030a725bc6bdfb870
Import subrepo cfg-if/:cfg-if at 4484a6faf816ff8058088ad857b0c6bb2f4b02b2
Import subrepo getrandom/:getrandom at d661aa7e1b8cc80b47dabe3d2135b3b47d2858af
Import subrepo rand/:rand at d877ed528248b52d947e0484364a4e1ae59ca502

1 files changed, 45 insertions, 0 deletions

diff --git a/getrandom/Cargo.toml b/getrandom/Cargo.toml
new file mode 100644
index 0000000..b159674
--- /dev/null
+++ b/getrandom/Cargo.toml
@@ -0,0 +1,45 @@
+[package]
+name = "getrandom"
+version = "0.1.13"
+edition = "2018"
+authors = ["The Rand Project Developers"]
+license = "MIT OR Apache-2.0"
+description = "A small cross-platform library for retrieving random data from system source"
+documentation = "https://docs.rs/getrandom"
+repository = "https://github.com/rust-random/getrandom"
+categories = ["os", "no-std"]
+exclude = ["utils/*", ".*", "appveyor.yml"]
+
+[badges]
+travis-ci = { repository = "rust-random/getrandom" }
+appveyor = { repository = "rust-random/getrandom" }
+
+[dependencies]
+log = { version = "0.4", optional = true }
+cfg-if = "0.1.2"
+
+# When built as part of libstd
+compiler_builtins = { version = "0.1", optional = true }
+core = { version = "1.0", optional = true, package = "rustc-std-workspace-core" }
+
+[target.'cfg(unix)'.dependencies]
+libc = { version = "0.2.64", default-features = false }
+
+[target.'cfg(target_os = "wasi")'.dependencies]
+wasi = "0.7"
+
+[target.wasm32-unknown-unknown.dependencies]
+wasm-bindgen = { version = "0.2.29", optional = true }
+stdweb = { version = "0.4.18", optional = true }
+
+[target.wasm32-unknown-unknown.dev-dependencies]
+wasm-bindgen-test = "0.2"
+
+[features]
+std = []
+# Enables dummy implementation for unsupported targets
+dummy = []
+# Unstable feature to support being a libstd dependency
+rustc-dep-of-std = ["compiler_builtins", "core"]
+# Unstable feature for testing
+test-in-browser = ["wasm-bindgen"]