refactor

Imports

• github.com/getgauge/gauge/formatter
• github.com/getgauge/gauge/gauge
• github.com/getgauge/gauge/config
• github.com/getgauge/gauge/util
• github.com/getgauge/gauge/gauge_messages
• github.com/getgauge/gauge/logger
• github.com/getgauge/gauge/runner
• github.com/getgauge/gauge/parser

Standard library imports

• errors
• fmt
• os
• path/filepath
• strings