= Simple Tree
Demonstrates constructing a command tree to support multi-tiered command
structures.
The built tree has the following layout:
[source]
----
root
|- foo
| |- bar
|- fizz
|- buzz
----
There are 2 branches from the root command that may be selected, "foo" and
"fizz". Under the "foo" branch there is a singular leaf node, "bar". Under the
"fizz" branch, there is a singular leaf node "buzz".
The command tree may have any number of branches and/or leaves.