issue-672: Forecast and observation data to mockserver

[geosaaga]

• Added GET endpoints
  • /timeseries forecast/observations/geolocation
  • /count request count
  • /config dynamicConfig
  • /setup outputs current server settings
  • /quit quits the server
  • /error causes Internal server error for testing
• Added PUT endpoints
  • /setup/geolocation/:location for changing location
  • /setup/forecast/:season for changing summer/winter forecast
  • /setup/datamode/:mode for changing how timesteps are converted
  • /setup/debug/:boolean for debug mode on/off
• Fixed dynamicConfig and data refresh related issues in the app
• Added launch parameter for setting DynamicConfig url