Errors reference Doc - template for all SDKs,
then local versions.
Reference section for SDK 3.0 docs
Documentation of Error codes, starting with XATTR
Documenting the list of all possible common error messages with the error codes for FTS service
Will be in the other eight SDKs in next docs build.
See also https://github.com/couchbase/kv_engine/blob/master/docs/ErrorMap.md
Development of this SDK 3.0 doc in early stages at https://docs.google.com/document/d/1O4i7hq-13kM4_i8uesy_uFf2ZMCQT_25-ND-RwsDaBA/edit
Work should increase pace once the SDK Error RFC is stable, and the work is fully implemented into the SDKs