Vendor dependencies for 0.3.0 release

vendor/ppv-lite86/src/lib.rs

@@ -0,0 +1,42 @@
+#![no_std]
+
+// Design:
+// - safety: safe creation of any machine type is done only by instance methods of a
+//   Machine (which is a ZST + Copy type), which can only by created unsafely or safely
+//   through feature detection (e.g. fn AVX2::try_get() -> Option<Machine>).
+
+mod soft;
+mod types;
+pub use self::types::*;
+
+#[cfg(all(
+    target_arch = "x86_64",
+    target_feature = "sse2",
+    not(feature = "no_simd"),
+    not(miri)
+))]
+pub mod x86_64;
+#[cfg(all(
+    target_arch = "x86_64",
+    target_feature = "sse2",
+    not(feature = "no_simd"),
+    not(miri)
+))]
+use self::x86_64 as arch;
+
+#[cfg(any(
+    feature = "no_simd",
+    miri,
+    not(target_arch = "x86_64"),
+    all(target_arch = "x86_64", not(target_feature = "sse2"))
+))]
+pub mod generic;
+#[cfg(any(
+    feature = "no_simd",
+    miri,
+    not(target_arch = "x86_64"),
+    all(target_arch = "x86_64", not(target_feature = "sse2"))
+))]
+use self::generic as arch;
+
+pub use self::arch::{vec128_storage, vec256_storage, vec512_storage};