resources: add MEI logo page

[musicEnfanthen]

This PR adds the SVG version of the MEI logo to the repo. (Cudos to @craigsapp for designing it.)

The PR also includes a second version that has been optimized with SVGO to reduce file size (~18kB to ~14 kB) and line numbers (345 to 130) by about 25%.

[musicog]

Thanks!
A couple of points:

1. Should we point to it from somewhere on music-encoding.org, perhaps as a textual link on the main page (e.g., "A vector graphic of the MEI logo is available here" as the last sentence before the sponsors, or as a new page under "Resources")?
2. Particularly if the answer to the above is "yes", can we explicitly associate a CC license with it? Perhaps CC-BY with naming of the "Music Encoding Initiative"? (if this is acceptable to you, @craigsapp!)
   Edit: On reflection CC BY-ND might be preferable? Perhaps something to raise at the next community meeting?

[craigsapp]

Particularly if the answer to the above is "yes", can we explicitly associate a CC license with it? Perhaps CC-BY with naming of the "Music Encoding Initiative"? (if this is acceptable to you, @craigsapp!)
Edit: On reflection CC BY-ND might be preferable? Perhaps something to raise at the next community meeting?

Yes, I transferred it to the MEI entity via an email with Perry Roland (but with the proviso that I can still use it without licensing it :-).

It is probably best to use CC BY-ND so that people do not alter it without permission.

[craigsapp]

Styling it like this variant (homepage of music-encoding):

Should be allowed. Compare to original which is light-themed, three color, with text:

It might be good to provide a set of stylings (dark versus light in this case, for example, or thumbnail versus full size versions).

[musicog]

Agreed that a "dark-mode" SVG should be offered. I can generate one (as SVG) if none exist?
Thumbnail vs full-size is not as relevant in a vector context but we could offer PNGs at different sizes as well...

[rettinghaus]

pinging @musicEnfanthen

[musicog]

Here's versions of the SVG for use on dark backgrounds, using colouring from the logo on music-encoding.org
(I could produce versions with a filled in dark background included, if useful?)

[musicog]

Thanks for the SVGs!
Please consider adding the dark versions as well?
(also, it would be good to link to these from somewhere on the website -- perhaps from the "about" page?)

[bwbohl]

+1 for adding the dark SVGs by @musicog to the repo. Concerning the place, I’d rather put them in a separate collection, the about page could be a good start, but we could polish it a bit to be more like a "press section".

[musicEnfanthen]

UPDATE: Added not only the SVG versions, but SVG and PNG versions of the MEI logo in light and dark theme, both as full variant with lettering Music Encoding Initiative, and as simple variant without lettering. Also added a dedicated page under "Resources" with an attribution section.

[musicog]

Thanks @musicEnfanthen! This will be very useful I think