added ags essentials

packages/ags/custom/env.d.ts

@@ -0,0 +1,21 @@
+declare const SRC: string
+
+declare module "inline:*" {
+    const content: string
+    export default content
+}
+
+declare module "*.scss" {
+    const content: string
+    export default content
+}
+
+declare module "*.blp" {
+    const content: string
+    export default content
+}
+
+declare module "*.css" {
+    const content: string
+    export default content
+}