Added Tor icons to repo #67

Added the below icons to the repo which can be used for Tor network connectivity indicators #58.

From previous discussion on issue.

At some stage it would be nice to have some colored icons, but whilst the others are still in a black and white I think its important to stick with this style for now to keep consistency. I followed the same style that the connect icons use...

Link to the figma file where I did the icon designs > https://www.figma.com/file/FJ02rY3m8V9ZCDvoXjW39W/Bitcoin-Core?node-id=486%3A312

In order: Not connected -> connecting -> connected.

Here is some examples of how they could be shown

Concept ACK

What is the point of adding the icons if they are not shown in the gui?

What is the point of adding the icons if they are not shown in the gui?

I'll take care about it :)

Please add source/license to new files (contrib/debian/copyright) and optimize the png versions: https://github.com/bitcoin-core/bitcoin-maintainer-tools/blob/master/optimize-pngs.py

Concept ACK

(make sure it renders to look more like an onion than, say, a bomb ;)

What is the point of adding the icons if they are not shown in the gui?

They will be soon as hebasto said. We have been discussing the implementation over at the bitcoin design slack.

Though yes I guess I could have just passed the icons onto hebasto and he do a PR implementing them into the GUI but I figured some feedback on the design was important.

Concept ACK

(make sure it renders to look more like an onion than, say, a bomb ;)

There is both png and svg versions to play around with so the implementation can be a little flexible (using the svg's over pngs).

Concept ACK though I would prefer a simpler, less fine-grained icon.

What is the point of adding the icons if they are not shown in the gui?

I agree. These should be merged when they are being used; I don't think there's any need for us to start pulling in unused assets/imagery. If people are looking for feedback on designs, opening new issues in this repo or commenting in the existing threads is the way to go (I can see that was done in #58).