Update go.mod, go.sum and vendor

Running `go mod vendor` generates new additions and deletions.

vendor/github.com/gdamore/tcell/terminfo/x/xnuppc/term.go

@@ -0,0 +1,34 @@
+// Generated automatically.  DO NOT HAND-EDIT.
+
+package xnuppc
+
+import "github.com/gdamore/tcell/terminfo"
+
+func init() {
+
+	// Darwin PowerPC Console (color)
+	terminfo.AddTerminfo(&terminfo.Terminfo{
+		Name:         "xnuppc",
+		Aliases:      []string{"darwin"},
+		Colors:       8,
+		Clear:        "\x1b[H\x1b[J",
+		AttrOff:      "\x1b[m",
+		Underline:    "\x1b[4m",
+		Bold:         "\x1b[1m",
+		Reverse:      "\x1b[7m",
+		EnterKeypad:  "\x1b[?1h\x1b=",
+		ExitKeypad:   "\x1b[?1l\x1b>",
+		SetFg:        "\x1b[3%p1%dm",
+		SetBg:        "\x1b[4%p1%dm",
+		SetFgBg:      "\x1b[3%p1%d;4%p2%dm",
+		PadChar:      "\x00",
+		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
+		CursorBack1:  "\x1b[D",
+		CursorUp1:    "\x1b[A",
+		KeyUp:        "\x1bOA",
+		KeyDown:      "\x1bOB",
+		KeyRight:     "\x1bOC",
+		KeyLeft:      "\x1bOD",
+		KeyBackspace: "\xff",
+	})
+}