This is a part of two activities
* Refactor config and store all parameters to document model
* Implement everything as phases (which are supposed to be purely document driven)
This patch removes bootstrapInfo section from the airshipctl config and
makes these to commands
* airshipctl baremetal isogen
* airthipctl baremetal remotedirect
to take necessary parameters from documents
We introduce two airship API kinds ImageGenerator and RemoteDirect.
Instead of storing config parameters in cm/secrets we use these two
API objects.
Relates-To: #246
Closes: #254
Change-Id: I42903c45dce1c73da184c07277fec76fd88c700f
e9c8425c30