build: compiled feature set

[kamilsk]

Motivation: compile binary with predefined features.

See

go-tool/internal/config/features.go

Lines 6 to 11 in f59cf8b

	var Features = config.Features{
	{
	Name: "boilerplate",
	Enabled: true,
	},
	}

.

$ go build main.go -- --supported:feature=false

Inspiration: https://github.com/evanw/esbuild/releases/tag/v0.14.46, --supported:feature=false.