Convert SatsPrice to a Skip multiplatform app

Sources/SatsPrice/Network/PriceSource.swift

@@ -0,0 +1,45 @@
+// This is free software: you can redistribute and/or modify it
+// under the terms of the GNU General Public License 3.0
+// as published by the Free Software Foundation https://fsf.org
+//
+//  PriceSource.swift
+//  SatsPrice
+//
+//  Created by Terry Yiu on 2/20/24.
+//
+
+import Foundation
+
+enum PriceSource: CaseIterable, CustomStringConvertible {
+    
+    static var allCases: [PriceSource] {
+#if DEBUG
+        [.coinbase, .coingecko, .manual, .fake]
+#else
+        [.coinbase, .coingecko, .manual]
+#endif
+    }
+
+    case coinbase
+    case coingecko
+    case manual
+
+#if DEBUG
+    case fake
+#endif
+
+    var description: String {
+        switch self {
+        case .coinbase:
+            "Coinbase"
+        case .coingecko:
+            "CoinGecko"
+        case .manual:
+            "Manual"
+#if DEBUG
+        case .fake:
+            "Fake"
+#endif
+        }
+    }
+}