geocode: add coordinates to 69 custodian files across multiple countries
Countries updated: AR, AT, BG, BR, CA, CL, CN, CU, FI, GE, IR, JO, KG,
KR, LB, LI, LV, MX, MY, NI, NL, PS, PY, SX, TM, VN
- Manual city name mappings for transliteration variants
- St. Pölten -> Sankt Pölten (AT)
- Gaza City -> Gaza (PS)
- Beit Hanoun -> Bayt Hanun (PS)
- Veliko Tarnovo via geonames_id (BG)