refactor all container widgets into subpackage

cwidgets/main.go

@@ -0,0 +1,22 @@
+package cwidgets
+
+import (
+	"github.com/bcicen/ctop/logging"
+	ui "github.com/gizak/termui"
+)
+
+var log = logging.Init()
+
+type ContainerWidgets interface {
+	Render(int, int)
+	Reset()
+	Buffer() ui.Buffer
+	Highlight()
+	UnHighlight()
+	SetY(int)
+	SetWidth(int)
+	SetStatus(string)
+	SetCPU(int)
+	SetNet(int64, int64)
+	SetMem(int64, int64, int)
+}