Split internal system package

This changes splits the functionality in the internal system package
into two packages: one for dealing with devices and one for dealing
with kernel modules. This removes ambiguity around the meaning of
driver / device roots in each case.

In each case, a root can be specified where device nodes are created
or kernel modules loaded.

Signed-off-by: Evan Lezar <elezar@nvidia.com>

internal/system/nvmodules/options.go

@@ -0,0 +1,43 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package nvmodules
+
+import "github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+
+// Option is a function that sets an option on the Interface struct.
+type Option func(*Interface)
+
+// WithDryRun sets the dry run option for the Interface struct.
+func WithDryRun(dryRun bool) Option {
+	return func(i *Interface) {
+		i.dryRun = dryRun
+	}
+}
+
+// WithLogger sets the logger for the Interface struct.
+func WithLogger(logger logger.Interface) Option {
+	return func(i *Interface) {
+		i.logger = logger
+	}
+}
+
+// WithRoot sets the root directory for the NVIDIA device nodes.
+func WithRoot(root string) Option {
+	return func(i *Interface) {
+		i.root = root
+	}
+}