Switch to new vendor directory layout

Fixes #113

Signed-off-by: Marcos Lilljedahl <marcosnils@gmail.com>

vendor/github.com/Azure/go-ansiterm/csi_entry_state.go

@@ -0,0 +1,49 @@
+package ansiterm
+
+type CsiEntryState struct {
+	BaseState
+}
+
+func (csiState CsiEntryState) Handle(b byte) (s State, e error) {
+	logger.Infof("CsiEntry::Handle %#x", b)
+
+	nextState, err := csiState.BaseState.Handle(b)
+	if nextState != nil || err != nil {
+		return nextState, err
+	}
+
+	switch {
+	case sliceContains(Alphabetics, b):
+		return csiState.parser.Ground, nil
+	case sliceContains(CsiCollectables, b):
+		return csiState.parser.CsiParam, nil
+	case sliceContains(Executors, b):
+		return csiState, csiState.parser.execute()
+	}
+
+	return csiState, nil
+}
+
+func (csiState CsiEntryState) Transition(s State) error {
+	logger.Infof("CsiEntry::Transition %s --> %s", csiState.Name(), s.Name())
+	csiState.BaseState.Transition(s)
+
+	switch s {
+	case csiState.parser.Ground:
+		return csiState.parser.csiDispatch()
+	case csiState.parser.CsiParam:
+		switch {
+		case sliceContains(CsiParams, csiState.parser.context.currentChar):
+			csiState.parser.collectParam()
+		case sliceContains(Intermeds, csiState.parser.context.currentChar):
+			csiState.parser.collectInter()
+		}
+	}
+
+	return nil
+}
+
+func (csiState CsiEntryState) Enter() error {
+	csiState.parser.clear()
+	return nil
+}