Cogs & Creeks 1.9

• Removed CoasterCart 1.0.2 and its legacy camera mixin. Native Create and Coasters Ponder previews passed the targeted tests.
• Added Create: Coasters Simulated 0.1.5 and Create: Coaster Seat 2.0.2 to client and server.
• Added Weather Glass 0.6.0 to the client, with vanilla 16-pixel detail.
• Cleaned up the obsolete CoasterCart block tag. Existing language, current strength, economy, and gameplay settings are retained.