Add the the updated scoring that came with Arcs and Chains

[DeltaC79]

Arcs and chains however, change some scoring aspects when in use. If the note is the start of an arc, the post swing is no longer calculated. If the note is in the middle of an arc, you will only need to worry about accuracy. If the note is the end of an arc, the pre swing is no longer calculated. The beginning note in chains also don't have their post swing calculated, and can only give 85 points maximum. However, the links in a chain give you 20 points no matter what, but will screw up your game if you miss them.