feat(mdtest run): initiate mdtest tool and add support for run command

Create mdtest tool for testing multi-device applications.  Currently
it supports only part of the function of 'mdtest run' command.  The
run command is able to detect connected device properties and print
them on the terminal.

Change-Id: I95d55319b7cf3873eafac825c24d9e039c5ebb76
13 files changed