bake: initial implementation

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

bake/hcl.go

@@ -0,0 +1,11 @@
+package bake
+
+import "github.com/hashicorp/hcl"
+
+func ParseHCL(dt []byte) (*Config, error) {
+	var c Config
+	if err := hcl.Unmarshal(dt, &c); err != nil {
+		return nil, err
+	}
+	return &c, nil
+}