SSH connection status indicators

- Add Connected bool field to vfs.Entry and RemoteMount
- Track connection status in sshState.connectedHosts
- Show status icon (connected/disconnected) in pane header when browsing remote host
- Async SSH connection test with cancel support for Add Host dialog
- Colored labels and styled help text in SSH dialogs
- Confirmation dialog when deleting manually-added SSH hosts

vendor/golang.org/x/sys/cpu/cpu_riscv64.go

@@ -0,0 +1,32 @@
+// Copyright 2019 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 riscv64
+
+package cpu
+
+const cacheLineSize = 64
+
+func initOptions() {
+	options = []option{
+		{Name: "fastmisaligned", Feature: &RISCV64.HasFastMisaligned},
+		{Name: "c", Feature: &RISCV64.HasC},
+		{Name: "v", Feature: &RISCV64.HasV},
+		{Name: "zba", Feature: &RISCV64.HasZba},
+		{Name: "zbb", Feature: &RISCV64.HasZbb},
+		{Name: "zbs", Feature: &RISCV64.HasZbs},
+		// RISC-V Cryptography Extensions
+		{Name: "zvbb", Feature: &RISCV64.HasZvbb},
+		{Name: "zvbc", Feature: &RISCV64.HasZvbc},
+		{Name: "zvkb", Feature: &RISCV64.HasZvkb},
+		{Name: "zvkg", Feature: &RISCV64.HasZvkg},
+		{Name: "zvkt", Feature: &RISCV64.HasZvkt},
+		{Name: "zvkn", Feature: &RISCV64.HasZvkn},
+		{Name: "zvknc", Feature: &RISCV64.HasZvknc},
+		{Name: "zvkng", Feature: &RISCV64.HasZvkng},
+		{Name: "zvks", Feature: &RISCV64.HasZvks},
+		{Name: "zvksc", Feature: &RISCV64.HasZvksc},
+		{Name: "zvksg", Feature: &RISCV64.HasZvksg},
+	}
+}