Design/implement simple bootstrapping.

[johnwhumphreys]

Notes on this say "Simple bootstrap: bootstrap host mesh without scheduler integration." - need someone else to go into more detail and pick this up though.

[johnwhumphreys]

@zdevito - please spec this out and/or reassign if you're not the right POC.

[mariusae]

Taking this as it is part of the ongoing HostMesh work.