release v0.2.0

This release corrects the endianess for `used_idx` and adds some helper
functions for setting/getting fields in the queue. The later is used for
consuming the queue in Cloud Hypervisor.

Signed-off-by: Andreea Florescu <fandree@amazon.com>

Author: andreeaflorescu

crates/virtio-queue/CHANGELOG.md

@@ -0,0 +1,16 @@
+# v0.2.0
+
+## Added
+
+- *Testing Interface*: Added the possibility to initialize a mock descriptor
+  chain from a list of descriptors.
+- Added setters and getters for the queue fields required for extending the
+  `Queue` in VMMs.
+
+## Fixed
+
+- Apply the appropriate endianness conversion on `used_idx`.
+
+# v0.1.0
+
+This is the first release of the crate.