add license

Signed-off-by: Oleksandr Redko <oleksandr.red+github@gmail.com>

Author: alexandear

cmd/limactl/main_darwin.go

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright The Lima Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import "github.com/spf13/cobra"

cmd/limactl/main_linux.go

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright The Lima Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import "github.com/spf13/cobra"

cmd/limactl/main_windows.go

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright The Lima Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import "github.com/spf13/cobra"