test: Initial unit testing

- Test quests vector loading
- Test default quest on empty fields
- Test correct quest
- Fixed config paths handling

tests/cfg/config.toml

@@ -0,0 +1,10 @@
+# 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"