feat: add SVG icons set

[kuzhelov]

Export initial set of icons requested here: #441 (comment)

Non-working icons were fixed.

[kuzhelov]

those are not used

[mnajdova]

Couple of thoughts, for individual icons:
like - the regular and outlined icons are the same (both outlined)
redo - was not able to find it (maybe has different name)
translate - was not able to find it (maybe has different name)
immersive reader - was not able to find it (maybe has different name)
add participants - we have just add participant (should there be two different icons)
alert (triangle with exclamation mark) - outline same as regular
exclamation mark for important messages - was not able to find it (maybe has different name)
add to calendar - we have just calendar
member joined (control message in conversation) - was not able to find it (maybe has different name)
member left (control message in conversation) - regular same as outlined

Other icons:
Call end - regular and outline same (both filled)
Call control present new - regular and outline same (both outlined)
Call control stop resenting new - regular and outline same (both outlined)
Mics - regular and outline same (both outlined)
Mics off - regular and outline same (both outlined)

@kuzhelov not sure if this is the scope of this PR, but let's try to fix at least the new icons added.

[kuzhelov]

@mnajdova

Thanks a lot for thorough review, here is response for those where problem still exists:

• error - here we have two icons where one is rendered as outlined in both cases, another as filled:
  • always outlined: callalert
  • always filled: error
  • thinking about removing this from current PR before it will be clarified how we are going to handle this (or, maybe even use another icon?)
• same story for like and liked

Missing ¯\(ツ)/¯ ones:

• redo - wasn't able to find either, has introduced retry instead :)
• immersive reader
• add calendar

Same icons for regular and outlined

This problem origins from Preprocessed Icons, applied to:

• call
• call end
• call control present new
• call control stop resenting new
• leave
• mic
• mic off
• redbang

[mnajdova]

Approving this changes, but let's create an issue or track somewhere the icons that needs fixing.. @codepretty please take a look into the list of icons in the comments of this PR.

[codepretty]

For processed icons, I just ported all the icons included in the Teams app today. A number of these icons are incorrect/outdated/duplicates, but we just haven't had time to go through the current app and update everything. If you have questions about which icons to use, I'd recommend first looking at https://teams.microsoft.com/_?ring=ring0#/toolkit and then reaching out to myself or @notandrew. However, for the ones listed below...

• error - here we have two icons where one is rendered as outlined in both cases, another as filled:

I'll sync with Design to see what the correct error icon to use is.

• same story for like and liked

I think these should be combined as the outline and filled states of one icon, respectively.

Missing ¯\(ツ)/¯ ones:

redo - wasn't able to find either, has introduced retry instead :)

The retry icon is outdated. The correct icon to use is refresh which has both a filled and outline state.

immersive reader

This is named icons-read-aloud (or readaloud icon in processed icons)

add calendar

I'm not sure what add calendar means? are you referring to the meetingnew icon?

Same icons for regular and outlined

• call
• redbang

I see a filled and outline state for these icons. redbang is hard to tell because it's subtle, but it does exist.

• call end
• call control present new
• call control stop resenting new
• leave
• mic
• mic off

I'll sync with Design for these icons.