Embed System in Game

This embeds the system in the game, making the game an independant
instance from the system, allowing the system to update, but the game
to continue the same.
Move ports to non-regular ones

This is to allow dev to run multiple sysems
Embed information in character
Enable documentation quto generation
Spec character

This specs the character’s public methods: all_characteristics,
all_actions, and all_bonuses