Add prettier conf

Author: poltak

package.json

@@ -23,6 +23,7 @@
         "firebase-tools": "^11.16.0",
         "object-path": "^0.11.4",
         "pluralize": "^8.0.0",
+        "prettier": "2.0.4",
         "randombytes": "^2.1.0",
         "ts-node": "^8.5.4",
         "tsconfig-paths": "^3.9.0",

prettier.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+    semi: false,
+    singleQuote: true,
+    trailingComma: 'all',
+    tabWidth: 4,
+}

yarn.lock

@@ -4476,6 +4476,11 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
+prettier@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.4.tgz#2d1bae173e355996ee355ec9830a7a1ee05457ef"
+  integrity sha512-SVJIQ51spzFDvh4fIbCLvciiDMCrRhlN3mbZvv/+ycjvmF5E73bKdGfU8QDLNmjYJf+lsGnDBC4UUnvTe5OO0w==
+
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"