Heavy soldier line: new infantry unit proposal

• Castle age:
  • Morning star soldier (barracks): infantry unit with bonus damage against siege weapons units.
• Imperial Age:
  • War Hammer soldier (barracks): infantry unit with bonus against self-defense builings like castles and towers.

New techs:

• Holy Water Sprinkler: heavy soldier line inflict more damage against economic buildings like farms, mills and mining camps. (blacksmith, Castle).
• Maul: heavy soldier line inflict more damage against self-defense buildings like castles and towers. (blacksmith, Imperial).
• Spiked hammer: heavy soldier line is not affected by murder holes buildings (barracks, Imperial).