Removed reflection to the game itself

• Added ModInfo class, which is meant for deserializing modInfo.json files.
• Added Helper.FirstValue() and Helper.LastValue() which returns the first non-null value from an anonymous function.
• Added Helper.GetUpperBound() and Helper.IsNullOrEmpty() for IEnumerable<T> type.
• Added null checks to Helper.Backwards<T>(), Helper.Call<T>(), and Helper.Replace<T>()
• Added empty/null check for ModBundleName with instructions on how to set it up.
• Changed exception from Version to be clearer and give instructions.
• Changed ToOrdinal() to be compatible with negative numbers.
• Changed caching system in PathManager to accept objects instead of strings.
• Renamed Helper.ThrowIfNullOrEmpty() to Helper.AssertNotNullOrEmpty()
• Replaced PathManager.GetModInfoVersion() and PathManager.GetModInfoPath() with PathManager.GetModInfo()