Refactoring

Refactored the module and added provider for new south wales in australia

v1.1.1

• Disabled markdownlint rule MD024 (no-duplicate-header)
• Config option toFixed to show only 2 decimals for the price.
• Coordinate.to() throws exception if start point is not set.

v1.1.0

• API provider development Guide.
• API provider spritpreisrechner.at.
• Disabled markdownlint rule MD026 (no-trailing-punctuation)
• Disabled eslint rule no-console
• Documentation
• Doclets.io integration
• Contributing guidelines
• Issue template
• Pull request template
• Outsourced API provider tankerkoenig.de.