ksqlDB - 0.16.0

(https://github.com/confluentinc/ksql/releases/tag/v0.16.0-ksqldb) (Not released publicly, build hiccups)

Features

• client: add getInfo method to java client (#7030) (b09f003)
• add describe option to list streams/tables (#6827) (26e3dea)
• add functions to support use of timestamp data type (#6852) (2cee618)
• add standard deviation udf (#6845) (f2fdbb3)
• display precision and scale when describing DECIMAL columns (#6872) (fb89998)
• enable decimal for Protobuf (#6884) (6b5877c)
• Make pull queries streamed asynchronously (#6813) (b69e3f8)
• make UDAFs configurable and remove limit on COLLECT_LIST/SET (#6851) (63ae169)
• Rewrites pull query WHERE clause to be in DNF and allow more expressions (#6874) (b8e0c99)
• Support timestamp protobuf serde (#6927) (5ea1ce4)
• timestamp support - casting, comparisons and serde (#6806) (a27df46)

Bug Fixes

• client/server SSL settings fail when 'ssl.key.password' is set (#6763) (3e48540)
• do not log data on JSON deserialization errors (MINOR) (#6930) (1834da6)
• ff-4240-upgrade httpclient version (#6935) (19f4d63)
• fix how the buffer limit check evaluates streams config (#6876) (ad1cc2a)
• format cast arguments with passed context (6.0.x) (#7032) (8c0d93d)
• make formattimestamp and parsetimestamp default to utc (#6954) (a5ea98a)
• Make Select * avoid code gen for projections (#6846) (0896b85)
• npe when getting topic configs (#6946) (5e026d4)
• remove mutable subscriber field on an endpoint (#6905) (98c7d73)
• use the right name for fallback subject for transient queries (#6821) (d044d64), closes #6817