ScrapYard v0.9.4.51 for KSP 1.2.2

• Added ability to sell/discard parts in the editor by dropping them on the ScrapYard button. Selling currently occurs at 100% value, that will change in the future.
• When overriding funds, the cost display in the editor updates to show the cost after accounting for the inventory. Purely visual, so if you can't afford the whole vessel before the inventory's help then you won't be able to launch.
• Added OnSYTrackerUpdated event. Fires when the part tracker registers a build.