PHOENIX-7487: Make table level max lookback accept lookback value in seconds instead of milli-seconds to be consistent with TTL

[sanjeet006py]

Summary of the changes:

• User will specify table level max lookback age in seconds in DDL.
• The value in seconds will be converted to milli-seconds before storing it in SYSCAT. Thus, SYSCAT will contain table level max lookback age in milli-seconds.
• Property values key map in PTableImpl stores table level max lookback age in seconds as this map is for constructing DDLs dynamically.

[sanjeet006py]

@tkhurana @virajjasani @jpisaac can you please review the PR. It will be great if we can merge this before 5.3 release to not worry about backward compatibility of user interface. Thanks