Added a configuration file for configuring the following:

• Whether to cap the speed (defaults to yes).
• The speed cap. (defaults to 0.15, about 1.5x the player's speed)
• The speed cap when flying/swimming. (defaults to 0.15, about 1.5x the player's speed)
• The speed bonus that legendaries get. (defaults to 0.05)
• Whether you can fly (defaults to yes)
• Whether you can swim (defaults to yes)
• A list that is either a blacklist/whitelist for what Pokemon you can ride, depending on what the "listUse" option is set to. (the list/list use option defaults to empty, which means that all pokemon can be mounted)