creator: golang-ci lint

1. Fix csv split bug #32

2. Add ElasticDateTime support @ArtemChekunov
3. Add http Prometheus metrics @ArtemChekunov
4. Add docker-ci && docker image
5. Improved code style

1.Add CSV format support (ww1516123)

2.Add Nullable Type support (ww1516123)
3.Add Array Type support (jgulick48)

add DateTime as UInt32, Date as UInt16

update gomod

fix auto reconnect

update gitignore