Use cobra to turn linkctl into a proper cli

Most commands are currently placeholders but version and db init work

cmd/linkctl/config.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+func configPreRun(cmd *cobra.Command, args []string) error {
+	return setupDb()
+}
+
+func configPostRun(cmd *cobra.Command, args []string) error {
+	return cleanupDb()
+}
+
+func configSetHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}
+
+func configGetHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}
+
+func configListHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}