feat: Add bucket schema management commands (#52)

* feat: update generated client to include schema-management APIs
* feat: implement interfaces to decode flags and CSV
* feat: implement decoders for different measurement schema column formats
* feat: extend bucket CLI commands to support schema type property
* feat: add CLI commands to manage measurement schema
* test: add unit tests for bucket schema create, update and list commands

internal/cmd/bucket_schema/nsjson.go

@@ -0,0 +1,28 @@
+package bucket_schema
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"github.com/influxdata/influx-cli/v2/internal/api"
+)
+
+func decodeNDJson(r io.Reader) ([]api.MeasurementSchemaColumn, error) {
+	scan := bufio.NewScanner(r)
+	var rows []api.MeasurementSchemaColumn
+	n := 1
+	for scan.Scan() {
+		if line := bytes.TrimSpace(scan.Bytes()); len(line) > 0 {
+			var row api.MeasurementSchemaColumn
+			if err := json.Unmarshal(line, &row); err != nil {
+				return nil, fmt.Errorf("error decoding JSON at line %d: %w", n, err)
+			}
+			rows = append(rows, row)
+		}
+		n++
+	}
+	return rows, nil
+}