Add provider for lorem picsum

[mickaelchanrion]

Hello,

It's sometimes useful to use dummy images while developing a frontend. Especially when the content edition is not done yet.
I therefore created a custom provider for Lorem Picsum

Usage is as follow:

• <NuxtImg provider="picsum" src="id/237" width="200" height="300" />

  renders: https://picsum.photos/id/237/200/300

• <NuxtImg provider="picsum" src="id/237" width="200" height="300" :modifiers="{ grayscale: 1, blur: 1 }" />

  renders: https://picsum.photos/id/237/200/300?grayscale=1&blur=1

If interested, I can share and/or create a PR :)

[pi0]

Nice idea @mickaelchanrion. PR welcome <3

[shadow81627]

I can maybe look at doing a PR tomorrow, if I have time

[mickaelchanrion]

Don't burden yourself, I already started with the changes. Will publish the PR sometime this weekend ;)