Added an interface to support multiple games

- In the same way, I expect the addition of the ability of holding
multiple sinks in memory like outputting to a TUI, GUI and other
hardware devices

sources/beamng/beamngSink.go

@@ -0,0 +1,40 @@
+package beamng
+
+import (
+	"fmt"
+
+	"esilva.org.localhost/bngsdk"
+)
+
+// This will implement the GameSink interface from the main package
+type BeamNG struct {
+	SDK *bngsdk.BNGSDK
+}
+
+const (
+	NAME = "BeamNG.Drive"
+)
+
+func Init(ip string, port int) (BeamNG, error) {
+	var err error
+
+	sdk, err := bngsdk.Init(ip, port)
+	if err != nil {
+		return BeamNG{}, err
+	}
+
+	return BeamNG{SDK: &sdk}, nil
+}
+
+// GetData will retrieve a given field by its name from the OutGauge data
+func (b *BeamNG) GetData(fieldName string) (interface{}, error) {
+	if val, ok := b.SDK.DataDict[fieldName]; ok {
+		return val, nil
+	}
+
+	return nil, fmt.Errorf("key `%s` doesn't exist", fieldName)
+}
+
+func (b *BeamNG) UpdateData() error {
+	return b.SDK.ReadData()
+}