I am sorry to disappoint anyone who, hearing of the new series “Kaos,” which Netflix styles as “KAOS,” is expecting a “Get Smart” spinoff. We are instead facing the third series currently in production steeped in Greek history and mythology, after Fox’s animated “Krapopolis” and Disney+’s excellent “Percy Jackson and the Olympians.” (And three, as we say in the news game, makes a trend.) “Kaos,” which premiered Thursday, is set in a modern, metropolitan, alternative “Krete” (played by Spain), ruled from high above by Zeus (Jeff Goldblum), king of the gods, the capo di tutti capi — if a phrase …