Update to v0.2.0

Also adds a CHANGELOG

Author: thejpster

CHANGELOG.MD

@@ -0,0 +1,9 @@
+# Change Log
+
+## v0.2.0
+
+Adds HID support and basic shell, with 'mem' and 'fill' commands.
+
+## v0.1.0
+
+First version.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "neotron-os"
-version = "0.1.0"
+version = "0.2.0"
 authors = ["Jonathan 'theJPster' Pallant <github@thejpster.org.uk>"]
 edition = "2018"
 description = "The Neotron Operating System"
@@ -41,4 +41,4 @@ neotron-common-bios = "0.7"
 r0 = "1.0"
 postcard = "0.5"
 serde = { version = "1.0", default-features = false }
-menu = "0.3"
+menu = "0.3"