feat: Begin working on configuration client.

Sources/CliClient/Internal/Helpers.swift

@@ -0,0 +1,15 @@
+import Logging
+
+// TODO: Move.
+@_spi(Internal)
+public extension Logger.Level {
+
+  init(verbose: Int) {
+    switch verbose {
+    case 1: self = .warning
+    case 2: self = .debug
+    case 3...: self = .trace
+    default: self = .info
+    }
+  }
+}