Release v0.7.0

• Support import alias for :import command. You can alias like :import jq github.com/itchyny/gojq or :import tt text/template ht html/template).
• Implement :verbose command and GORE_VERBOSE environment variable to toggle printing of assigned or declared values.
• Improve offline availability of pretty printer package (detecting logic of transitive dependencies is improved using go list -deps command).
• Fix :doc command failing with missing go.sum entry error.
• Fix gopls completion and test portability for Windows.