Add Achievements

[Chantology]

Simple things but I would like to have this in the game. Can be as simple as the Shin Chan game:

• The Number of times played exceeds 10
• The highest score reached 1000
• The Number of times played exceeds 25
• The highest score reached 2000
• Collect 100 Items in total
• The Number of times played exceeds 50
• The highest score reached 3000
• Collect 250 Items in total
• The Number of times played exceeds 100
• The highest score reached 5000
• The total score reached 10000
• Collect 500 Items in total
• The total score reached 100000
• Collect 1000 Items in total
• The total score reached 1000000

So this needs to count internally the high scores. So the achievements page can also have the statistics to see the current total score and amounts of played games

[Chantology]

could this be helpful for a simple solution?
https://github.com/5FB5/gd-achievements

[Chantology]

Template added in 0157a67
Achievement symbols need to be created and implemented