Update airports by IATA codes (#38)

* fix: assign the right place to `SQD` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=SQD
- https://en.wikipedia.org/wiki/Shangrao_Sanqingshan_Airport
- Took elevation here: https://ourairports.com/airports/SQD/
- Took TZ here: https://www.fluentcargo.com/ports/iata/SQD

* fix: assign the right place to `GBI` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=GBI
- https://en.wikipedia.org/wiki/Kalaburagi_Airport

* fix: assign the right place to `SHO` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=SHO
- https://en.wikipedia.org/wiki/King_Mswati_III_International_Airport

* fix: assign the right place to `BFJ` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=BFJ
- https://en.wikipedia.org/wiki/Bijie_Feixiong_Airport

* fix: assign the right place to `YZY` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=YZY
- https://en.wikipedia.org/wiki/Zhangye_Ganzhou_Airport
- Took elevation here: https://ourairports.com/airports/CN-0143/

* fix: assign the right place to `KBH` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=KBH
- https://en.wikipedia.org/wiki/Kahama_Airstrip

* fix: assign the right place to `LLJ` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=LLJ
- https://en.wikipedia.org/wiki/Silampari_Airport

* fix: assign the right places to `NIU` and `NFO` IATA codes

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=NIU
- https://www.iata.org/en/publications/directories/code-search/?airport.search=NFO
- https://en.wikipedia.org/wiki/Niau_Airport
- https://en.wikipedia.org/wiki/Niuafo%CA%BBou_Airport
- Took elevation for `NIU` here: https://ourairports.com/airports/NTKN/

* fix: use more accurate coordinates for `TLI` IATA code place

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=TLI
- https://en.wikipedia.org/wiki/Sultan_Bantilan_Airport

* fix: assign the right place for `CDT` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=CDT
- https://en.wikipedia.org/wiki/Castell%C3%B3n%E2%80%93Costa_Azahar_Airport

* fix: assign the right place to `CGY` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=CGY
- https://en.wikipedia.org/wiki/Laguindingan_Airport
- https://en.wikipedia.org/wiki/Malaybalay_Airport

* fix: assign the right place to `YNT` IATA code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=YNT
- https://en.wikipedia.org/wiki/Yantai_Penglai_International_Airport
- https://en.wikipedia.org/wiki/Yantai_Laishan_Airport

* fix: assign the right places to `INC` and `YEH` IATA codes

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=INC
- https://www.iata.org/en/publications/directories/code-search/?airport.search=YEH
- https://en.wikipedia.org/wiki/Yinchuan_Hedong_International_Airport
- https://en.wikipedia.org/wiki/Yinchuan_Helanshan_Airport
- Took elevation for `YEH` here: https://ourairports.com/airports/YEH/

* fix: use more accurate coordinates for `ZYI` IATA code place

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=ZYI
- https://en.wikipedia.org/wiki/Zunyi_Xinzhou_Airport

* fix: use more accurate coordinates for `OAL` IATA code place

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=OAL
- https://en.wikipedia.org/wiki/Cacoal_Airport

* fix: assign the right IATA code for a place with `OIBP` ICAO code

References:
- https://www.iata.org/en/publications/directories/code-search/?airport.search=PGU
- https://en.wikipedia.org/wiki/Persian_Gulf_Airport

* fix: assign the right place to `SGG` IATA code

Additionally, removed Simanggang Airport entry, as it is seems the
airport is closed and `WBGY` ICAO code is not assigned to any other
airport.

References:
- https://en.wikipedia.org/wiki/Sermiligaaq_Heliport
- https://ourairports.com/comments/15800/
- http://www.malaysianwings.com/forum/index.php?/topic/1011-closed-airstrip/

README.rst

@@ -2,9 +2,9 @@
 airportsdata |downloads|
 ========================
 
-.. |ICAO| replace:: 28,176
+.. |ICAO| replace:: 28,185
 
-.. |IATA| replace:: 7,817
+.. |IATA| replace:: 7,819
 
 .. |LID| replace:: 12,603