Integrate prettier into eslint and CLI

The VSCode extension for Prettier appears to have stopped working, and
this gives us the same config as appears to be default with VSCode.

It also appears to match the create-react-app defaults.

ESLint config from https://medium.com/technical-credit/using-prettier-with-vs-code-and-create-react-app-67c2449b9d08

.eslintrc

@@ -1,3 +1,7 @@
 {
-  "extends": "react-app"
-}
+  "extends": "react-app",
+  "plugins": ["prettier"],
+  "rules": {
+    "prettier/prettier": "error"
+  }
+}

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "singleQuote": true,
+  "trailingComma": "es5"
+}

package.json

@@ -6,6 +6,7 @@
     "canvas-prebuilt": "^1.6.5-prerelease.1",
     "echarts": "^4.0.4",
     "echarts-for-react": "^2.0.8",
+    "eslint-plugin-prettier": "^2.6.0",
     "gh-pages": "^1.1.0",
     "prettier": "^1.12.1",
     "probability-distributions": "^0.9.1",

yarn.lock

@@ -3353,6 +3353,13 @@ [email protected]:
     emoji-regex "^6.1.0"
     jsx-ast-utils "^2.0.0"
 
+eslint-plugin-prettier@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-2.6.0.tgz#33e4e228bdb06142d03c560ce04ec23f6c767dd7"
+  dependencies:
+    fast-diff "^1.1.1"
+    jest-docblock "^21.0.0"
+
 [email protected]:
   version "7.7.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-react/-/eslint-plugin-react-7.7.0.tgz#f606c719dbd8a1a2b3d25c16299813878cca0160"
@@ -3653,6 +3660,10 @@ fast-deep-equal@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz#7b05218ddf9667bf7f370bf7fdb2cb15fdd0aa49"
 
+fast-diff@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.1.2.tgz#4b62c42b8e03de3f848460b639079920695d0154"
+
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
@@ -5082,6 +5093,10 @@ jest-diff@^22.4.0, jest-diff@^22.4.3:
     jest-get-type "^22.4.3"
     pretty-format "^22.4.3"
 
+jest-docblock@^21.0.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-21.2.0.tgz#51529c3b30d5fd159da60c27ceedc195faf8d414"
+
 jest-docblock@^22.4.0, jest-docblock@^22.4.3:
   version "22.4.3"
   resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-22.4.3.tgz#50886f132b42b280c903c592373bb6e93bb68b19"