These were edited manually and the input file was not updated, which
is causing problems when trying to generate new/updated envs.
Change-Id: Ia2e53e52361e35d94e2dedf9b8885498693bc2e0
Partial-Bug: 1713761
We're not going to want to list every single sample environment in
a single file, so let's also take a directory and just read every
yaml file in it. This commit adds support for that as well as
some initial environments to demonstrate its use.
Change-Id: If2c608f2a61fc5e16784ab594d23f1fa335e1d3c