test: run address-codec tests in the browser (#2466)

Update tests to use jasmine compatible functions.

This means changing `test` to `it`, `toStrictEqual` to `toEqual` (which
is still strict), `toThrowError` to `toError`, and updating the param
for toError to pass an `Error` object.

Remove the need to specify --single-run.

packages/ripple-address-codec/karma.config.js

@@ -0,0 +1,15 @@
+const baseKarmaConfig = require('../../karma.config')
+const webpackConfig = require('./test/webpack.config')
+delete webpackConfig.entry
+
+module.exports = function (config) {
+  baseKarmaConfig(config)
+
+  config.set({
+    base: '',
+    webpack: webpackConfig,
+
+    // list of files / patterns to load in the browser
+    files: ['test/**/*.test.ts'],
+  })
+}