Merge pull request #1 from BFALacerda/eliot

adding policy generation and structure for policy execution
started modifying code
added new get_policy_cb, and associated extra functions
various bug fixes after testing
updated to use new door_check server
added method to find waypoint pose from its name
Merge branch 'eliot' of https://github.com/EDixon/strands_executive into eliot

Conflicts:
	mdp_plan_exec/src/mdp_plan_exec/mdp.py