Homework for our internal Golang lections in iSpring

Scans text and checks if it has mostly positive or mostly negative spirits. Uses client/server architecture.

• Run new server: './goemotions -server'
• Close existing server: './goemotions close'
• Reload positive and negative words dictionaries on existing server: './goemotions reload'
• Scan file 'in.txt' on server-side: './goemotions scan in.txt'