Add fixed-hash and uint crates to parity-common

.travis.yml

@@ -7,4 +7,5 @@ matrix:
     - rust: nightly
 script:
   - cargo build
-  - cargo test
+  - cargo test --all --exclude uint
+  - cd uint/ && cargo test --features=std,impl_quickcheck_arbitrary

Cargo.toml

@@ -1,5 +1,6 @@
 [workspace]
 members = [
+	"fixed-hash",
 	"hashdb",
 	"keccak-hash",
 	"kvdb",
@@ -14,4 +15,5 @@ members = [
 	"rlp",
 	"trie-standardmap",
 	"triehash",
+	"uint"
 ]

fixed-hash/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "fixed-hash"
+version = "0.2.2"
+authors = ["Parity Technologies <[email protected]>"]
+license = "MIT"
+homepage = "https://github.com/paritytech/parity-common"
+description = "Fixed-size hashes"
+
+[dependencies]
+heapsize = { version = "0.4", optional = true }
+rand = { version = "0.4", optional = true }
+rustc-hex = { version = "1.0", optional = true }
+quickcheck = { version = "0.6", optional = true }
+
+[target.'cfg(not(target_os = "unknown"))'.dependencies]
+libc = { version = "0.2", optional = true, default-features = false }
+
+[features]
+default = ["libc"]
+std = ["rustc-hex", "rand"]
+heapsizeof = ["heapsize"]
+impl_quickcheck_arbitrary = ["quickcheck"]