常量本版本新增

NAI|AI_LOCAL_GOVERNOR_TAX_BASE_THRESHOLD

NAI|AI_LOCAL_GOVERNOR_TAX_BASE_THRESHOLDloading_screen/common/defines/00_defines.txt:721

if AI has lower than this tax base they wont bother trying to find a place for local governor

定义loading_screen/common/defines/00_defines.txt:721

100