add new boilerplate and modify add command for create new boilerplate

assets/boilerplate/.babelrc

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+
+{
+    "presets": [
+      "stage-2",
+      [
+        "env",
+        {
+          "targets": {
+            "browsers": [
+              "> 1%",
+              "last 5 versions",
+              "Firefox >= 45",
+              "iOS >=8",
+              "Safari >=8",
+              "ie >= 10"
+            ]
+          }
+        }
+      ]
+    ],
+    "plugins": [
+      "babel-plugin-transform-class-properties",
+      "transform-async-to-generator",
+      "transform-export-extensions",
+      [
+        "transform-runtime",
+        {
+          "polyfill": false,
+          "regenerator": true
+        }
+      ]
+    ]
+  }

assets/boilerplate/.eslintignore

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+node_modules/*
+**/vendor/*.js
+webpack.config.js
+truffle.js

assets/boilerplate/.eslintrc

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+{
+    "env": {
+      "browser": true,
+      "es6": true
+    },
+    "parser": "babel-eslint",
+    "parserOptions": {
+      "ecmaVersion": 6,
+      "sourceType": "module",
+      "ecmaFeatures": {
+        "modules": true
+      }
+    },
+    "extends": [
+      "eslint:recommended"
+    ],
+    "rules": {
+      "no-console": "off"
+    }
+  }

assets/boilerplate/contracts/HelloWorld.sol

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+pragma solidity ^0.4.23;
+
+contract HelloWorld {
+    function sayHelloWorld() public pure returns (string) {
+        return "Hello World";
+    }
+}

assets/boilerplate/contracts/Migrations.sol

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+pragma solidity ^0.4.23;
+
+contract Migrations {
+    address public owner;
+    uint public last_completed_migration;
+
+    constructor() public {
+        owner = msg.sender;
+    }
+
+    modifier restricted() {
+        if (msg.sender == owner) _;
+    }
+
+    function setCompleted(uint completed) public restricted {
+        last_completed_migration = completed;
+    }
+
+    function upgrade(address new_address) public restricted {
+        Migrations upgraded = Migrations(new_address);
+        upgraded.setCompleted(last_completed_migration);
+    }
+}

assets/boilerplate/contracts/__test__/HelloWorld.sol.js

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+const HelloWorld = artifacts.require('../HelloWorld.sol');
+
+contract('HelloWorld', function (accounts) {
+  let hw;
+  beforeEach('setup contract for each test', async function () {
+    hw = await HelloWorld.new()
+  })
+
+  it('should say Hello World', async function () {
+    assert.equal(await hw.sayHelloWorld(), "Hello World")
+  })
+})

assets/boilerplate/contracts/__test__/index.js

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+const fs = require('fs');
+const { execSync, } = require('child_process');
+const KillPort = require('kill-port');
+
+try {
+  const files = fs.readdirSync(__dirname).filter(x => x !== 'index.js');
+  files.forEach((file) => {
+    const filePath = `${__dirname}/${file}`;
+    const result = execSync(`./node_modules/.bin/truffle test ${filePath}`);
+    console.log(result.toString('utf8'));
+  });
+  KillPort(8545); // default ganache-cli port, 
+} catch (error) {
+  console.log(error.stdout.toString('utf8'));
+  KillPort(8545); // default ganache-cli port, 
+}

assets/boilerplate/kaizen.json

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+{
+  "name": "React-truffle",
+  "type": "React",
+  "issued": "PortalNetwork",
+  "ethereum": {
+    "build_output_path": "./build/smart_contracts",
+    "provider": "https://ropsten.infura.io/<Your Infura API Key>",
+    "network_id": 3,
+    "private_key": "",
+    "develop_port": 8545
+  }
+}

assets/boilerplate/migrations/1_initial_migration.js

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+var Migrations = artifacts.require("../contracts/Migrations.sol");
+
+module.exports = function(deployer) {
+  deployer.deploy(Migrations);
+};

assets/boilerplate/migrations/2_deploy_contracts.js

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+var HelloWorld = artifacts.require("../contracts/HelloWorld.sol");
+
+module.exports = function(deployer) {
+  deployer.deploy(HelloWorld);
+};