fix(schematics): Use prefix option in feature schematic

Previously, passing --prefix when generating a feature would
make changes only in the generated action. This passes the prefix
option to the effect and reducers as well.

Fixes ngrx#3116

modules/schematics/src/feature/index.ts

@@ -19,6 +19,7 @@ export default function (options: FeatureOptions): Rule {
         skipTests: options.skipTests,
         api: options.api,
         creators: options.creators,
+        prefix: options.prefix,
       }),
       schematic('reducer', {
         flat: options.flat,
@@ -32,6 +33,7 @@ export default function (options: FeatureOptions): Rule {
         feature: true,
         api: options.api,
         creators: options.creators,
+        prefix: options.prefix,
       }),
       schematic('effect', {
         flat: options.flat,
@@ -44,6 +46,7 @@ export default function (options: FeatureOptions): Rule {
         feature: true,
         api: options.api,
         creators: options.creators,
+        prefix: options.prefix,
       }),
       schematic('selector', {
         flat: options.flat,

modules/schematics/src/feature/schema.json

@@ -63,6 +63,12 @@
       "description": "Specifies if the actions, reducers, and effects should be created using creator functions",
       "aliases": ["c"],
       "x-prompt": "Do you want to use the create functions?"
+    },
+    "prefix": {
+      "description": "The prefix of the action, effect and reducer.",
+      "type": "string",
+      "default": "load",
+      "x-prompt": "What should be the prefix of the action, effect and reducer?"
     }
   },
   "required": []

modules/schematics/src/feature/schema.ts

@@ -49,4 +49,6 @@ export interface Schema {
    * Specifies whether to use creator functions for actions, reducers, and effects.
    */
   creators?: boolean;
+
+  prefix?: string;
 }