Add support for compiler API

[wallneradam]

Ability to connect PyneCore to PyneSys API and compile from CLI

• Create an API client for PyneAPI
• Get API key from config file
• Check API key expiration (JWT format, so it is easy)
• Implement https://api.pynesys.io/docs#/Compiler/compile_script
• Make the CLI command to compile .pine files automatically to PyneCore through API
• After compilation, the .py file must have the same modification time as the .pine
• Compile only when the .pine has changed
• On error it should show nice error. E.g. When the limits are reached
• If no API keys specified. It should show link to pynesys.io and should inform user nicely
• Update documentation with this feature