Recon sitrep + map, sniper NPC, terrain properties

Changes:

• New recon sitrep following the albatross holdout.
• Sniper NPC
• Added aggression and stampede defense abilities to berserker NPC; can get them to hit each other.
• Swallowtail shreds on lock-on
• Replaced edge-of-screen scroll with swiping on a touchpad or mousewheel.
• Added little confirmation box for consuming lockons // other reactions e.g. turret shots.
• Albatross mission has hard/normal mode.
• Eliminated big character sidebar, made pc/npc icons smaller and on the bottoms and tops of the screen, respectively.
  • only move camera if you click on them
  • character sheet now opens if you click the main portrait
• Added sitrep goal and round count in bottom-right
• Added selected terrain properties in the bottom-right
• Cannibalized music from old game, Starship Rubicon, for some variety in placeholder music.

Smaller changes:

• Redesigned move/attack preview tiles to be more distinct and clear.
• Added terrain destruction to cutscenes.
• Armor shows inside of unit healthbars.
• Add a little jitter to the timing of seismic ripper smoke animations.
• Made tutorial flashing buttons more noticeable
• Added more steps and prompts to the tutorial
• Boosting make a little text effect
• Show range preview while placing turrets

Bugfixes:

• AOE now hits ALL units on a tile e.g. both a flying unit and the wreck it's standing on (or terrain)
• Self-destruct properly calculates radius for size 2 units.
• Flying units are immune to prone
• Fix crash on using lock-on as your reactive code