vendor dependencies, make some changes to how input is done

vendor/github.com/ebitengine/gomobile/app/internal/callfn/callfn.go

@@ -0,0 +1,16 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build android && (arm || 386 || amd64 || arm64)
+
+// Package callfn provides an android entry point.
+//
+// It is a separate package from app because it contains Go assembly,
+// which does not compile in a package using cgo.
+package callfn
+
+// CallFn calls a zero-argument function by its program counter.
+// It is only intended for calling main.main. Using it for
+// anything else will not end well.
+func CallFn(fn uintptr)

vendor/github.com/ebitengine/gomobile/app/internal/callfn/callfn_386.s

@@ -0,0 +1,11 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+#include "funcdata.h"
+
+TEXT ·CallFn(SB),$0-4
+	MOVL fn+0(FP), AX
+	CALL AX
+	RET

vendor/github.com/ebitengine/gomobile/app/internal/callfn/callfn_amd64.s

@@ -0,0 +1,11 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+#include "funcdata.h"
+
+TEXT ·CallFn(SB),$0-8
+	MOVQ fn+0(FP), AX
+	CALL AX
+	RET

vendor/github.com/ebitengine/gomobile/app/internal/callfn/callfn_arm.s

@@ -0,0 +1,11 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+#include "funcdata.h"
+
+TEXT ·CallFn(SB),$0-4
+	MOVW fn+0(FP), R0
+	BL (R0)
+	RET

vendor/github.com/ebitengine/gomobile/app/internal/callfn/callfn_arm64.s

@@ -0,0 +1,11 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+#include "funcdata.h"
+
+TEXT ·CallFn(SB),$0-8
+	MOVD fn+0(FP), R0
+	BL (R0)
+	RET