Loki: Create component for sending logs to Loki (#51500)

go.mod

@@ -54,7 +54,6 @@ require (
 	github.com/grafana/grafana-aws-sdk v0.10.7
 	github.com/grafana/grafana-azure-sdk-go v1.2.0
 	github.com/grafana/grafana-plugin-sdk-go v0.138.0
-	github.com/grafana/loki v1.6.2-0.20211015002020-7832783b1caa
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
 	github.com/hashicorp/go-hclog v1.0.0
 	github.com/hashicorp/go-plugin v1.4.3
@@ -140,7 +139,6 @@ require (
 	github.com/apache/arrow/go/arrow v0.0.0-20211112161151-bc219186db40 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/c2h5oh/datasize v0.0.0-20200112174442-28bbd4740fee // indirect
 	github.com/cenkalti/backoff/v4 v4.1.2 // indirect
 	github.com/centrifugal/protocol v0.7.6 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
@@ -171,7 +169,7 @@ require (
 	github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe // indirect
 	github.com/golang/glog v1.0.0 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.2
 	github.com/gomodule/redigo v2.0.0+incompatible // indirect
 	github.com/google/btree v1.0.1 // indirect
 	github.com/google/flatbuffers v2.0.0+incompatible // indirect
@@ -259,6 +257,7 @@ require (
 	cloud.google.com/go v0.100.2 // indirect
 	github.com/armon/go-metrics v0.3.10 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/gosimple/unidecode v1.0.1 // indirect
 	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
 	github.com/hashicorp/memberlist v0.3.0 // indirect