feat: Implemented file hierarchy initialization

- Bump version to 0.5.1
- Added Config::save method
- cli: Added init command

cfg/config.toml

@@ -1,10 +1,4 @@
-# Default config
-
-# Path to quests folder relative to config
-quests_path = "./quests"
-
-# Path to accounts folder relative to config
-accounts_path = "./accounts"
-
-# Path to map .toml file relative to config
-map = "./map.toml"
+quests_path = "quests"
+accounts_path = "accounts"
+map = "map.toml"
+verbose = true