Introduce TSDB service (#31520)

* Introduce TSDB service

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

Co-authored-by: Erik Sundell <erik.sundell87@gmail.com>
Co-authored-by: Will Browne <will.browne@grafana.com>
Co-authored-by: Torkel Ödegaard <torkel@grafana.org>
Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>
Co-authored-by: Zoltán Bedi <zoltan.bedi@gmail.com>

pkg/tsdb/testdatasource/scenarios_test.go

@@ -9,7 +9,7 @@ import (
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 	"github.com/grafana/grafana-plugin-sdk-go/data"
 	"github.com/grafana/grafana/pkg/components/simplejson"
-	"github.com/grafana/grafana/pkg/tsdb"
+	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -19,7 +19,7 @@ func TestTestdataScenarios(t *testing.T) {
 
 	t.Run("random walk ", func(t *testing.T) {
 		t.Run("Should start at the requested value", func(t *testing.T) {
-			timeRange := tsdb.NewFakeTimeRange("5m", "now", time.Now())
+			timeRange := plugins.DataTimeRange{From: "5m", To: "now", Now: time.Now()}
 
 			model := simplejson.New()
 			model.Set("startValue", 1.234)
@@ -63,7 +63,7 @@ func TestTestdataScenarios(t *testing.T) {
 
 	t.Run("random walk table", func(t *testing.T) {
 		t.Run("Should return a table that looks like value/min/max", func(t *testing.T) {
-			timeRange := tsdb.NewFakeTimeRange("5m", "now", time.Now())
+			timeRange := plugins.DataTimeRange{From: "5m", To: "now", Now: time.Now()}
 
 			model := simplejson.New()
 			modelBytes, err := model.MarshalJSON()
@@ -117,7 +117,7 @@ func TestTestdataScenarios(t *testing.T) {
 		})
 
 		t.Run("Should return a table with some nil values", func(t *testing.T) {
-			timeRange := tsdb.NewFakeTimeRange("5m", "now", time.Now())
+			timeRange := plugins.DataTimeRange{From: "5m", To: "now", Now: time.Now()}
 
 			model := simplejson.New()
 			model.Set("withNil", true)