Basic BBSimCtl implementation

Change-Id: Ib5e6f7f462cdb10a3d976b99812658bf7e225dfb
diff --git a/internal/bbsimctl/commands/config.go b/internal/bbsimctl/commands/config.go
new file mode 100644
index 0000000..b05bb5b
--- /dev/null
+++ b/internal/bbsimctl/commands/config.go
@@ -0,0 +1,68 @@
+/*
+ * Portions copyright 2019-present Open Networking Foundation
+ * Original copyright 2019-present Ciena Corporation
+ *
+ * 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 commands
+
+import (
+	"fmt"
+	"github.com/jessevdk/go-flags"
+	"github.com/opencord/bbsim/internal/bbsimctl/config"
+	"gopkg.in/yaml.v2"
+)
+
+const copyrightNotice = `
+# Portions copyright 2019-present Open Networking Foundation
+# Original copyright 2019-present Ciena Corporation
+#
+# 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.
+#
+`
+
+type ConfigOptions struct{}
+
+func RegisterConfigCommands(parent *flags.Parser) {
+	parent.AddCommand("config", "generate bbsimctl configuration", "Commands to generate bbsimctl configuration", &ConfigOptions{})
+}
+
+func (options *ConfigOptions) Execute(args []string) error {
+	//GlobalConfig
+	config.ProcessGlobalOptions()
+
+	b, err := yaml.Marshal(config.GlobalConfig)
+	if err != nil {
+		return err
+	}
+	fmt.Println(copyrightNotice)
+	fmt.Println(string(b))
+
+	fmt.Println("BBSimCtl details:")
+	fmt.Printf("\tVersion: %s \n", config.Version)
+	fmt.Printf("\tBuildTime: %s \n", config.BuildTime)
+	fmt.Printf("\tCommitHash: %s \n", config.CommitHash)
+	fmt.Printf("\tGitStatus: %s \n", config.GitStatus)
+	return nil
+}