implement resolve and apply

Signed-off-by: Jason Hall <jason@chainguard.dev>

example/multi-deployment.yaml

@@ -0,0 +1,38 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: app-config
+data:
+  setting: "production"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: hello-krust
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: hello-krust
+  template:
+    metadata:
+      labels:
+        app: hello-krust
+    spec:
+      containers:
+      - name: app
+        image: krust://./example/hello-krust
+      initContainers:
+      - name: init
+        image: krust://./example/hello-krust
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: hello-krust-svc
+spec:
+  selector:
+    app: hello-krust
+  ports:
+  - port: 80
+    targetPort: 8080