Add p5.js, Vega, and Vega-Lite (#24). Resolves #20 and #9

* Add p5.js
* Add Vega
* Add Vega-Lite

copy/tools/.example

@@ -75,6 +75,9 @@ github_data:
     date: "2021-04-30T00:00:00Z"
     link: https://github.com/ag-grid/ag-grid/releases/tag/v25.2.0
 
+stackoverflow_data:
+  questions_count: 37620
+
 twitter_feed:
   - user: Benjamin Scott
     image: /images/tweet-avatar.png

copy/tools/p5.yml

@@ -0,0 +1,73 @@
+title: p5.js
+description: JavaScript library for creative coding that makes coding accessible and inclusive
+logo: /images/logo/p5.svg
+developer:
+
+based_on:
+
+licenses:
+  - type: open-source
+    title: GNU LGPL 2.1
+    link: https://github.com/processing/p5.js/blob/main/license.txt
+
+types:
+  - low-level
+
+features:
+  easy-to-customize: 0
+  easy-to-start-with: 0
+  full-fledged: 0
+  very-popular: 0
+  well-documented: 0
+
+gallery:
+  - /images/slider/p5js-1.png
+  - /images/slider/p5js-2.png
+  - /images/slider/p5js-3.png
+  - /images/slider/p5js-4.png
+  - /images/slider/p5js-5.png
+
+languages:
+  - JavaScript
+  - TypeScript
+
+frameworks:
+  - vanilla-js
+
+slugs:
+  github: processing/p5.js
+  npm: p5
+  npm_types: "@types/p5"
+
+tags:
+  stackoverflow:
+    - p5.js
+  twitter:
+    - p5js
+    - p5xjs
+
+links:
+  website: https://p5js.org
+  examples: https://p5js.org/examples/
+  docs: https://p5js.org/examples/
+  pricing:
+  slack:
+
+content:
+  - type: official
+    title: "Get Started with p5.js"
+    link: https://p5js.org/get-started/
+
+github_data:
+  stars: 15600
+  contributors: 442
+  issues: 146
+  stale_issues: 50
+  last_release:
+    date: "2021-03-28T00:00:00Z"
+    link: https://github.com/processing/p5.js/releases/tag/v1.3.1
+
+stackoverflow_data:
+  questions_count: 2170
+
+twitter_feed:

copy/tools/vega-lite.yml

@@ -0,0 +1,73 @@
+title: Vega-Lite
+description: Concise grammar of interactive graphics, built on Vega
+logo: /images/logo/vega-lite.svg
+developer:
+
+based_on:
+  - vega
+
+licenses:
+  - type: open-source
+    title: BSD
+    link: https://github.com/vega/vega-lite/blob/master/LICENSE
+
+types:
+  - low-level
+
+features:
+  easy-to-customize: 0
+  easy-to-start-with: 0
+  full-fledged: 0
+  very-popular: 0
+  well-documented: 0
+
+gallery:
+  - /images/slider/vega-lite-1.png
+  - /images/slider/vega-lite-2.png
+  - /images/slider/vega-lite-3.png
+  - /images/slider/vega-lite-4.png
+  - /images/slider/vega-lite-5.png
+
+languages:
+  - JavaScript
+  - TypeScript
+
+frameworks:
+  - vanilla-js
+  - react
+
+slugs:
+  github: vega/vega-lite
+  npm: vega-lite
+
+tags:
+  stackoverflow:
+    - vega-lite
+  twitter:
+    - vegalite
+
+links:
+  website: https://vega.github.io/vega-lite/
+  examples: https://vega.github.io/vega-lite/examples/
+  docs: https://vega.github.io/vega-lite/docs/
+  pricing:
+  slack:
+
+content:
+  - type: official
+    title: "Introduction to Vega-Lite"
+    link: https://vega.github.io/vega-lite/tutorials/getting_started.html
+
+github_data:
+  stars: 3400
+  contributors: 165
+  issues: 471
+  stale_issues: 371
+  last_release:
+    date: "2021-04-16T00:00:00Z"
+    link: https://github.com/vega/vega-lite/releases/tag/v5.1.0
+
+stackoverflow_data:
+  questions_count: 688
+
+twitter_feed:

copy/tools/vega.yml

@@ -0,0 +1,73 @@
+title: Vega
+description: Visualization grammar, a declarative language for creating and sharing visualization designs
+logo: /images/logo/vega.svg
+developer:
+
+based_on:
+  - d3
+
+licenses:
+  - type: open-source
+    title: BSD
+    link: https://github.com/vega/vega/blob/master/LICENSE
+
+types:
+  - low-level
+
+features:
+  easy-to-customize: 0
+  easy-to-start-with: 0
+  full-fledged: 0
+  very-popular: 0
+  well-documented: 0
+
+gallery:
+  - /images/slider/vega-1.png
+  - /images/slider/vega-2.png
+  - /images/slider/vega-3.png
+  - /images/slider/vega-4.png
+  - /images/slider/vega-5.png
+
+languages:
+  - JavaScript
+  - TypeScript
+
+frameworks:
+  - vanilla-js
+  - react
+
+slugs:
+  github: vega/vega
+  npm: vega
+
+tags:
+  stackoverflow:
+    - vega
+  twitter:
+    - vegajs
+
+links:
+  website: https://vega.github.io/vega/
+  examples: https://vega.github.io/vega/examples/
+  docs: https://vega.github.io/vega/docs/
+  pricing:
+  slack:
+
+content:
+  - type: official
+    title: "Let's Make a Bar Chart"
+    link: https://vega.github.io/vega/tutorials/bar-chart/
+
+github_data:
+  stars: 9300
+  contributors: 102
+  issues: 334
+  stale_issues: 260
+  last_release:
+    date: "2021-03-29T00:00:00Z"
+    link: https://github.com/vega/vega/releases/tag/v5.20.1
+
+stackoverflow_data:
+  questions_count: 572
+
+twitter_feed: