Move RnD sample programs to examples dir, rename test_data to example_data, add stubs for server and client

examples/01-LoadJsonFile/main.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"doll/internal/doll"
+	"doll/internal/log"
+	"os"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+func main() {
+	file := "example_data/01-config.json"
+
+	log.Init("info", os.Stderr)
+	log.Infof("loading %s", file)
+
+	data := doll.LoadJsonFile(file)
+
+	log.Infof("data from %s", file)
+
+	spew.Dump(data)
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */