Add test for the "tile init" command.
Add test for the "tile init" command.

alex-slynko/tile-generator,alex-slynko/tile-generator,alex-slynko/tile-generator,cf-platform-eng/tile-generator,cf-platform-eng/tile-generator,cf-platform-eng/tile-generator,alex-slynko/tile-generator,cf-platform-eng/tile-generator