default to compile in, but also allow plugins

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

walker/walkers/chmodFuzz/fuzz.go

@@ -0,0 +1,17 @@
+package chmodFuzz
+
+import (
+	"os"
+
+	"git.thisco.de/vbatts/fuzz-walker/walker"
+)
+
+func init() {
+	walker.RegisterFuzzFunc(Name, FuzzFunc)
+}
+
+const Name = "chmodFuzz"
+
+func FuzzFunc(path string, info os.FileInfo) error {
+	return nil
+}