CLIMATE-328 - Add helpers for converting time values to datetime objects
CLIMATE-328 - Add helpers for converting time values to datetime objects

- Add ocw.utils module. Any 'general' helper functions that need to be
  shared across OCW or that may be helpful for external users should be
  placed here.
- Add helpers for converting time values from NetCDF files to datetime
  objects.

git-svn-id: https://svn.apache.org/repos/asf/incubator/climate/trunk@1562271 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: c08475d169a682077b7f8680d7504ac7c9044912
riverma/climate,apache/climate,apache/climate,Omkar20895/climate,huikyole/climate,pwcberry/climate,jarifibrahim/climate,MBoustani/climate,agoodm/climate,MJJoyce/climate,lewismc/climate,kwhitehall/climate,apache/climate,MBoustani/climate,apache/climate,lewismc/climate,pwcberry/climate,MJJoyce/climate,apache/climate,lewismc/climate,riverma/climate,jarifibrahim/climate,jarifibrahim/climate,pwcberry/climate,huikyole/climate,riverma/climate,Omkar20895/climate,MBoustani/climate,lewismc/climate,kwhitehall/climate,lewismc/climate,MBoustani/climate,huikyole/climate,kwhitehall/climate,Omkar20895/climate,MJJoyce/climate,huikyole/climate,Omkar20895/climate,pwcberry/climate,agoodm/climate,MBoustani/climate,riverma/climate,Omkar20895/climate,agoodm/climate,MJJoyce/climate,kwhitehall/climate,jarifibrahim/climate,jarifibrahim/climate,MJJoyce/climate,agoodm/climate,pwcberry/climate,agoodm/climate,huikyole/climate,riverma/climate