Add inventories for Ao

[bambooforest]

Alexander Coupe sent us better resources to add for Mongsen Ao and Ao:

https://www.academia.edu/1317662/A_Grammar_of_Mongsen_Ao

https://www.academia.edu/1317809/A_Phonetic_and_Phonological_Description_of_Ao_A_Tibeto_Burman_Language_of_Nagaland_North_East_India

And also notes that Temsunungsang’s 2009 dissertation as a factual source of info on Chungli, i.e. Gowda:

https://phoible.org/inventories/view/1704

describes segments not attested in subsequent work.

[bambooforest]

Note also

njo&apt_Ramaswami1999.pdf