feat(loader): support options.productionMode (#1208)

* fix(loader): use options.minimize

* misc(loader): rename options.minimize ~> options. productionMode

* feat(doc): add productionMode to options list

Author: pi0

Diff for: README.md

@@ -222,3 +222,4 @@ The following option has been changed to resourceQuery:
 - `transformAssetUrls`
 - `optimizeSSR`
 - `hotReload`
+- `productionMode`

Diff for: lib/index.js

@@ -30,7 +30,7 @@ module.exports = function (source) {
 
   const isServer = target === 'node'
   const isShadow = incomingQuery.shadow != null
-  const isProduction = minimize || process.env.NODE_ENV === 'production'
+  const isProduction = options.productionMode || minimize || process.env.NODE_ENV === 'production'
   const filename = path.basename(resourcePath)
   const context = rootContext || process.cwd()
   const sourceRoot = path.dirname(path.relative(context, resourcePath))