[AltKit] Replaces dedicated AltKit module with shared files across targets

Treating AltKit as a full module resulted in more complexity than necessary, when we really just wanted to share some files between different targets. Now we can share individual files across modules as-needed without AltKit overhead.

AltDaemon/main.swift

@@ -9,6 +9,6 @@
 import Foundation
 
 autoreleasepool {
-    ConnectionManager.shared.start()
+    DaemonConnectionManager.shared.start()
     RunLoop.current.run()
 }