created static initWith for withable

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Protocols/Initable.swift

@@ -10,3 +10,14 @@ import Foundation
 public protocol Initable {
     init()
 }
+
+extension Withable where Self:Initable {
+    /// Provides a closure to configure instances inline.
+    /// - Parameter closure: A closure with a mutable copy of `self` as the argument.
+    /// - Returns: Simply returns the mutated copy of the instance after called the `closure`.
+    @discardableResult public static func initWith(_ closure: (_ instance: inout Self) -> Void) -> Self {
+        var copy = Self()
+        closure(&copy)
+        return copy
+    }
+}