app init maven io.trygvis.appsh.examples:foo:1.0-SNAPSHOT =>

  # find resolver
  app config set app.resolver maven
  # run resolver/maven
    # resolve version for artifact
    # download artifact
    app config set maven.id io.trygvis.appsh.examples:foo:1.0-SNAPSHOT
  # run scripts/
  # create symlink

app init [-d directory] <resolver> <resolver args>

resolver/maven -r <repository url> <artifact id>

app list - lists all applications available under the specified directory