Convert console_output v3 plugin to v2.1

Changes required to have v3 plugin natively support
the v2 API

The get_console_output action is reverted to os-getConsoleOutput

Partially implements blueprint v2-on-v3-api
Change-Id: I71b0d5fd1a098052f8e11f60a19113b6d647ef2d
Merge "Convert console_output v3 plugin to v2.1"