Typescript Support

Converted every file to typescript. Therefore typescript and javascript is supported now.

The syntax for accessing the mocks changed slightly.

For example for setState: Instead testio.setState.fake it is now testio.fakes.setState.fake.

Changed Licence to MIT

Changes:

• Change licence to MIT
• Improved readme
• Improved package meta data

Initial release

This release contains only basic functionality, but every IoBroker Script should compile