feat(progress): Support the "progress" top-level attribute (#112)

closes issue #110

Author: michael-wolfenden

src/index.js

@@ -37,6 +37,7 @@ const makeSchema = (schemaOptions, schemaExtension) => {
     output: outputSchema,
     plugins: pluginsSchema,
     profile: Joi.boolean(),
+    progress: Joi.boolean(),
     recordsInputPath: looksLikeAbsolutePath,
     recordsOutputPath: looksLikeAbsolutePath,
     recordsPath: looksLikeAbsolutePath,

test/passing-configs/progress-option.js

@@ -0,0 +1,3 @@
+module.exports = {
+  progress: false
+}