feat: timestamp support - casting, comparisons and serde#6806

Merged

jzaralim merged 5 commits intoconfluentinc:masterfrom jzaralim:timestamp-impl

Jan 7, 2021

+6,412-162

Commits on Dec 19, 2020

first pass at timestamps
Zara Lim
committed
add functional test plans
Zara Lim
committed

Commits on Dec 21, 2020

fix build failure
Zara Lim
committed

Commits on Jan 6, 2021

address review comments
Zara Lim
committed

Commits on Jan 7, 2021

update klip to include time zones in date strings
Zara Lim
committed