Add support for Deno 1.4+

[bebraw]

Deno is an up and coming alternative to Node.js that's treating TypeScript as a first class citizen. Lately static site generators built around and have become to arise and it's starting to gain popularity within the community.

I hope you can consider adding it to the default build image of Netlify. As an interrim solution, it's possible to install Deno there using a script like this:

netlify.toml

[build]
  base    = ""
  publish = "build"
  command = "curl -fsSL https://deno.land/x/install/install.sh | sh && /opt/buildhome/.deno/bin/deno run --unstable --import-map=import_map.json -A ./scripts/build.ts"

There's a related request on the community side as well.

I understand you cannot integrate each and every thing that comes up but I hope you can consider adding Deno to your platform one day. 👍