feat: Begins integrating database client into vapor app.

Sources/SharedModels/VendorBranch.swift

@@ -22,3 +22,23 @@ public struct VendorBranch: Codable, Equatable, Identifiable, Sendable {
     self.updatedAt = updatedAt
   }
 }
+
+public extension VendorBranch {
+  struct Create: Codable, Sendable {
+    public let name: String
+    public let vendorID: Vendor.ID
+
+    public init(name: String, vendorID: Vendor.ID) {
+      self.name = name
+      self.vendorID = vendorID
+    }
+  }
+
+  struct Update: Codable, Sendable {
+    public let name: String?
+
+    public init(name: String?) {
+      self.name = name
+    }
+  }
+}