Contact with the Enemy

Features:

• Marker color editing, defaulted from target orbit
• Rotate camera to look at markers on close
• Show where off-screen markers are at screen edges
• Button to warp to a planning node with a buffer

Fixes:

• Better input locking
• Optimize trig calls
• Don't throw exceptions for normal maneuvers
• Don't randomly zoom in on the Sun
• Don't tab to ghost maneuvers in map view
• Update maneuver when switching bodies
• Make TS button responsive when all nodes are vessel-specific
• Make markers smaller in small SOIs and bigger in big SOIs
• Remove Sun from list of allowed start bodies