all: update generated code (#15808)

* core/types, core/vm, eth, tests: regenerate gencodec files

* Makefile: update devtools target

Install protoc-gen-go and print reminders about npm, solc and protoc.
Also switch to github.com/kevinburke/go-bindata because it's more
maintained.

* contracts/ens: update contracts and regenerate with solidity v0.4.19

The newer upstream version of the FIFSRegistrar contract doesn't set the
resolver anymore. The resolver is now deployed separately.

* contracts/release: regenerate with solidity v0.4.19

* contracts/chequebook: fix fallback and regenerate with solidity v0.4.19

The contract didn't have a fallback function, payments would be rejected
when compiled with newer solidity. References to 'mortal' and 'owned'
use the local file system so we can compile without network access.

* p2p/discv5: regenerate with recent stringer

* cmd/faucet: regenerate

* dashboard: regenerate

* eth/tracers: regenerate

* internal/jsre/deps: regenerate

* dashboard: avoid sed -i because it's not portable

* accounts/usbwallet/internal/trezor: fix go generate warnings

dashboard/dashboard.go

@@ -16,10 +16,11 @@
 
 package dashboard
 
+//go:generate npm --prefix ./assets install
 //go:generate ./assets/node_modules/.bin/webpack --config ./assets/webpack.config.js --context ./assets
 //go:generate go-bindata -nometadata -o assets.go -prefix assets -nocompress -pkg dashboard assets/public/...
-//go:generate gofmt -s -w assets.go
-//go:generate sed -i "s#var _public#//nolint:misspell\\n&#" assets.go
+//go:generate sh -c "sed 's#var _public#//nolint:misspell\\\n&#' assets.go > assets.go.tmp && mv assets.go.tmp assets.go"
+//go:generate gofmt -w -s assets.go
 
 import (
 	"fmt"