* logging and kite connection retry
(cherry picked from commit 9845a2d79e86c338093cadcae7f41b29d897c78c)
* changed thread.sleep time for kite connection retries
* websresponse retry on error - coding style change
* datetome parse to convert time in utc
* indentation code-style fix
* zerodhaDownloader support for dataTimeZone
* removed code redundancy for single conversion without hardcoded TZ
* removed hardcode dataTimeZone and code refactor
* returns exchange TZ to lean and data TZ to local disk from downloader
* Kite historical candle timestamp TZ conversion
* added unit test for kite historical candle
* access modifier correection
Ronit Jain
00f68b951f