Setup build procedure

package.json

@@ -1,18 +1,18 @@
 {
 	"$schema": "https://www.schemastore.org/package.json",
-    "name": "cleverogre/ogre-suspension",
-    "version": "1.0.0",
-    "title": "OgreSuspension",
+	"name": "cleverogre/ogre-suspension",
+	"version": "1.0.0",
+	"title": "OgreSuspension",
 	"description": "OgreSuspension will lock down a WordPress instance with a custom suspension page and prevent access to the admin dashboard. Use with caution!",
-    "author": "CleverOgre",
+	"author": "CleverOgre",
 	"license": "GPL-3.0+",
 	"keywords": [
-        "WordPress",
+		"WordPress",
 		"Plugin",
-        "suspension",
-        "lockdown",
-        "shutdown",
-        "suspend"
+		"suspension",
+		"lockdown",
+		"shutdown",
+		"suspend"
 	],
 	"homepage": "https://cleverogre.com",
 	"engines": {
@@ -23,6 +23,7 @@
 		"gulp": "^5.0.0",
 		"gulp-clean": "^0.4.0",
 		"gulp-cli": "^2.3.0",
+		"gulp-filter": "^9.0.1",
 		"gulp-zip": "^6.1.0"
 	}
 }