message: Coffeehouse requires Patronage
diff: <Strategy/>
  <Advisor>ADVISOR_GROWTH</Advisor>
  <ArtDefineTag>ART_DEF_BUILDING_COFFEEHOUSE</ArtDefineTag>
  - <PrereqTech>TECH_COMPANIES</PrereqTech>
  + <PrereqTech>TECH_PATRONAGE</PrereqTech>
  <bNukeImmune>1</bNukeImmune>
  <iCost>120</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  <Strategy/>
  <Advisor>ADVISOR_GROWTH</Advisor>
  <ArtDefineTag>ART_DEF_BUILDING_FRENCH_SALON</ArtDefineTag>
  - <PrereqTech>TECH_COMPANIES</PrereqTech>
  + <PrereqTech>TECH_PATRONAGE</PrereqTech>
  <bNukeImmune>1</bNukeImmune>
  <iCost>120</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  