✨ Add ic-merge command

Still needs some work, like saving to a new file, but works well so far.

cmd/ic-merge/main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"os"
+
+	c "codeberg.org/danjones000/utils/cli/context"
+	e "codeberg.org/danjones000/utils/cli/err"
+	ic "codeberg.org/danjones000/utils/infinitecraft"
+)
+
+func main() {
+	ctx, done := c.SelfCancelingContext(context.Background())
+	defer done()
+
+	m, err := ic.NewMerger(os.Args[1:])
+	e.HandleErr(err)
+	defer m.Close()
+
+	err = m.ParseFiles()
+	e.HandleErr(err)
+	err = m.ReadData(ctx)
+	e.HandleErr(err)
+
+	g, err := m.Merge(ctx)
+	e.HandleErr(err)
+
+	jsout := json.NewEncoder(os.Stdout)
+	jsout.SetIndent("", "\t")
+	err = jsout.Encode(g)
+	e.HandleErr(err)
+	// */
+}