This patch:
- vowel length for consistency
- Latin dictionaries indicate vowel length
- https://code.wildfiregames.com/D1935#80248 and https://trac.wildfiregames.com/wiki/SpecificNames#Latin
- already done in rome_tent.xml
- remove useless tooltip from rome_arch.xml
- add specific names to arch, stable, small tower, workshop
- correct specific names for army camp, corral (because plural in Classical Latin), large tower, siege wallset
- replace technically correct aedes Martis/Vestae (literally temple of Mars/Vesta; genitive) with aedes Martialis/Vestalis (temple dedicated to Mars/Vesta; adjective), because of flamen Martialis and virgo Vestalis
- removed unnecessary adjectives from centurio, healer, legionary, trader
- expanded hero names, because there tend to be more than one Roman with the same name