Write glue code for synch grounding

[romaeee]

#10

• add 'identifier' argument to hint_exact
  • parse this identifier in se_decoder, use this instead of location identifier, assert and tap out if not supplied. No mappings will be needed as it will be clear text
• Create fact atoms based on action grounded at no-meta stage
  • decode hints from step for a specific action (use hints generator code)
  • generate atom facts from decoded hints (just iterate over precondition_hints, effect_hints)
• Inject & remember these atoms in meta-0 level
• dump parameter factories, etc. from metaplanner, create domain and problem pddl, but don't solve
• Run full grounding with these facts-atoms in meta-process
• Return average score calculated to no-meta level
• add more hints