New client configuration pattern (#937)

* adding in initial config files

* working config files

* updating the client config pattern to default to dev instead of prod

* updating the npm script commands and docs

* Adding a helpful debugging log for the webpack build

* adding in more supporting documentation for running against production

* updating README.md and removing the unneeded ENV var

config.js

@@ -0,0 +1,29 @@
+function load(envName) {
+    const envOverrides = {
+        'production': () => require('./config/production.json'),
+        'qa': () => require('./config/qa.json'),
+        'development': () => require('./config/development.json'),
+    };
+
+    const baseConfig = require('./config/base.json');
+    const overrideConfig = envOverrides.hasOwnProperty(envName) ? envOverrides[envName]() : {};
+
+    return {
+        ...baseConfig,
+        ...overrideConfig
+    };
+}
+
+function log(configObj) {
+    const repeatNum = 50
+    console.log(`${"=".repeat(repeatNum)}\nenvConfig`)
+    Object.entries(configObj).map(([key, value]) => {
+        console.log(`  ${key}: ${value}`)
+    })
+    console.log(`${"=".repeat(repeatNum)}`)
+}
+
+module.exports = {
+    load,
+    log
+};