added dwarf fortress music for the title screen and mining asteroid

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>
Merge branch 'bleeding-edge-freeze' of https://github.com/Baystation12/Baystation12 into bleeding-edge-freeze
Merge pull request #2156 from caelaislinn/bleeding-edge-freeze

Procrastination, ho