Further reduce usage of global

Bargraph moves to common settings
"Global" config moves out of wtf and into cfg for the few things that need it
We can probably eliminate a global config used across things if we want to

modules/bargraph/settings.go

@@ -0,0 +1,18 @@
+package bargraph
+
+import (
+	"github.com/olebedev/config"
+	"github.com/wtfutil/wtf/cfg"
+)
+
+type Settings struct {
+	common *cfg.Common
+}
+
+func NewSettingsFromYAML(name string, ymlConfig *config.Config, globalConfig *config.Config) *Settings {
+	settings := Settings{
+		common: cfg.NewCommonSettingsFromModule(name, ymlConfig, globalConfig),
+	}
+
+	return &settings
+}

modules/bargraph/widget.go

@@ -0,0 +1,83 @@
+package bargraph
+
+/**************
+This is a demo bargraph that just populates some random date/val data
+*/
+
+import (
+	"github.com/rivo/tview"
+	"math/rand"
+	"time"
+
+	"github.com/wtfutil/wtf/wtf"
+)
+
+var started = false
+var ok = true
+
+// Widget define wtf widget to register widget later
+type Widget struct {
+	wtf.BarGraph
+
+	app *tview.Application
+}
+
+// NewWidget Make new instance of widget
+func NewWidget(app *tview.Application, settings *Settings) *Widget {
+	widget := Widget{
+		BarGraph: wtf.NewBarGraph(app, "Sample Bar Graph", settings.common, false),
+
+		app: app,
+	}
+
+	widget.View.SetWrap(true)
+	widget.View.SetWordWrap(true)
+
+	return &widget
+}
+
+/* -------------------- Exported Functions -------------------- */
+
+// MakeGraph - Load the dead drop stats
+func MakeGraph(widget *Widget) {
+
+	//this could come from config
+	const lineCount = 8
+	var stats [lineCount]wtf.Bar
+
+	barTime := time.Now()
+	for i := 0; i < lineCount; i++ {
+		barTime = barTime.Add(time.Duration(time.Minute))
+
+		bar := wtf.Bar{
+			Label:   barTime.Format("15:04"),
+			Percent: rand.Intn(100-5) + 5,
+		}
+
+		stats[i] = bar
+	}
+
+	widget.BarGraph.BuildBars(stats[:])
+
+}
+
+// Refresh & update after interval time
+func (widget *Widget) Refresh() {
+
+	if widget.Disabled() {
+		return
+	}
+
+	widget.View.Clear()
+
+	widget.app.QueueUpdateDraw(func() {
+		display(widget)
+	})
+
+}
+
+/* -------------------- Unexported Functions -------------------- */
+
+func display(widget *Widget) {
+	MakeGraph(widget)
+}