move cli to api

cli/capabilities.go → api/capabilities.go

-package cli
+package api
 
 import (
 	"context"

api/go.mod

+module code.fbi.h-da.de/cocsn/gosdn/api
+
+go 1.16
+
+require (
+	code.fbi.h-da.de/cocsn/api/go v0.0.0-20210609143151-4dabee5ab99a
+	code.fbi.h-da.de/cocsn/gosdn v0.0.3-0.20210609130706-9cca50b3d195
+	code.fbi.h-da.de/cocsn/yang-models v0.0.7
+	github.com/google/uuid v1.2.0
+	github.com/openconfig/gnmi v0.0.0-20210527163611-d3a3e30199da
+	github.com/openconfig/goyang v0.2.4
+	github.com/openconfig/ygot v0.10.11
+	github.com/sirupsen/logrus v1.8.1
+	github.com/spf13/viper v1.7.1
+	github.com/stretchr/testify v1.7.0
+	google.golang.org/grpc v1.37.0
+)

cli/grpc.go → api/grpc.go

-package cli
+package api
 
 import (
 	"context"

cli/grpc_test.go → api/grpc_test.go

-package cli
+package api
 
 import (
 	"context"

cli/subscribe.go → api/subscribe.go

-package cli
+package api
 
 import (
 	"context"

cli/target.go → api/target.go

-package cli
+package api
 
 import (
 	"context"