blkio: parse a bunch of fields

Signed-off-by: Levente Kurusa <lkurusa@acm.org>

Author: levex

Cargo.toml

@@ -5,7 +5,7 @@ repository = "https://github.com/levex/cgroups-rs"
 keywords = ["linux", "cgroup", "containers", "isolation"]
 categories = ["os", "api-bindings", "os::unix-apis"]
 license = "MIT OR Apache-2.0"
-version = "0.0.2"
+version = "0.0.3"
 authors = ["Levente Kurusa <lkurusa@acm.org>"]
 
 [dependencies]