Use Survey For Interactions With User (#186)

fixes

Use Survey For Interactions With User

Add Vendor "github.com/AlecAivazis/survey/v2"

Co-authored-by: Norwin Roosen <git@nroo.de>
Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/186
Reviewed-by: techknowlogick <techknowlogick@gitea.io>
Reviewed-by: Norwin <noerw@noreply.gitea.io>

vendor/github.com/AlecAivazis/survey/v2/terminal/stdio.go

@@ -0,0 +1,24 @@
+package terminal
+
+import (
+	"io"
+)
+
+// Stdio is the standard input/output the terminal reads/writes with.
+type Stdio struct {
+	In  FileReader
+	Out FileWriter
+	Err io.Writer
+}
+
+// FileWriter provides a minimal interface for Stdin.
+type FileWriter interface {
+	io.Writer
+	Fd() uintptr
+}
+
+// FileReader provides a minimal interface for Stdout.
+type FileReader interface {
+	io.Reader
+	Fd() uintptr
+}