Add Package.swift and move files around

Tests/TemplateLoader/InheritenceSpec.swift

@@ -0,0 +1,15 @@
+import Spectre
+import Stencil
+import PathKit
+
+
+describe("Inheritence") {
+  let path = Path(__FILE__) + ".." + ".." + "Tests" + "fixtures"
+  let loader = TemplateLoader(paths: [path])
+
+  $0.it("can inherit from another template") {
+    let context = Context(dictionary: ["loader": loader])
+    let template = loader.loadTemplate("child.html")
+    try expect(try template?.render(context)) == "Header\nChild"
+  }
+}