feat: Begins adding climate zone client and location clients.

Sources/CoreModels/Cooridinates.swift

@@ -0,0 +1,11 @@
+/// Represents a location coordinates.
+public struct Coordinates: Codable, Equatable, Sendable {
+
+  public let latitude: Double
+  public let longitude: Double
+
+  public init(latitude: Double, longitude: Double) {
+    self.latitude = latitude
+    self.longitude = longitude
+  }
+}