Publish provider on registry

Merge pull request #4 from disaster37/7.x

Build release with github instead circleci

Update kibana SDK

1. Fix export issue

v7.0.4

Upgrade terraform SDK

v7.0.3: Add resource copy_saved_object

Tested on ELK 7.5.1

v7.0.2

Fix issue on kibana_saved_object resource

v7.0.1: Initial release

Tested on Kibana 7.4.1

v0.0.2

Test CI