luci-app-nextdns: add luci integration for nextdns package

[rs]

Signed-off-by: Olivier Poitrey rs@nextdns.io

Description:

Adding support for NextDNS, a DNS over HTTPS service that provides customized block-lists (ad-block, malware protection, kid safety) as well advanced analytics amongst other things.

Depends on: openwrt/packages#10535

[rs]

FYI, main PR have been merged.

[ysc3839]

I think you should use client-side implementation. If you don't know how to do that I can make a pull request.

[rs]

@ysc3839: what do you mean by client-side implementation?

[ysc3839]

@rs #3267

[rs]

Got it. We can definitely move to client side, and we will. Could we do that in a second time tho? I'd love to have this module make the cut for 19.07.0 together with the daemon package which is already merged.

[hnyman]

Let's merge this first. You can then convert it later.
(there is not that much computational/conditional logic in the app, so the client-side implementation would not decrease router's CPU load that much.)

[rs]

Awesome, so you need another PR to put it in 19.07?

[hnyman]

Yes, preferably.

But if quite identical code works for 19.07 (and you have tested it...), I can also cherry-pick your single commit.