Quick fixes and features

[coderpatsy]

• Fix Libraries not building and add Data Centers
• Remove trade filter- added in base game
• Fix ship craft prices and futureproof other craft prices
• Disable exploring by default- map feature is hidden in the game

And some things easier for external scripts

• Add html ids to options list elements
• Send an event when KS loads

[cameroncondry]

Great additions overall, thank you!