Add db-connect, a SQL over HTTPS server

vendor/github.com/mitchellh/go-server-timing/context.go

@@ -0,0 +1,23 @@
+package servertiming
+
+import (
+	"context"
+)
+
+// NewContext returns a new Context that carries the Header value h.
+func NewContext(ctx context.Context, h *Header) context.Context {
+	return context.WithValue(ctx, contextKey, h)
+}
+
+// FromContext returns the *Header in the context, if any. If no Header
+// value exists, nil is returned.
+func FromContext(ctx context.Context) *Header {
+	h, _ := ctx.Value(contextKey).(*Header)
+	return h
+}
+
+type contextKeyType struct{}
+
+// The key where the header value is stored. This is globally unique since
+// it uses a custom unexported type. The struct{} costs zero allocations.
+var contextKey = contextKeyType(struct{}{})