Add kdan test device into Admob test id list

src/main/java/com/kdanmobile/admanager/admob/RequestFactory.kt

@@ -9,6 +9,10 @@ class RequestFactory {
         fun create(isPersonalized: Boolean): AdRequest {
             return AdRequest.Builder().apply {
                 addTestDevice("9E5CBFF6A5A91A582ABA54DC3BB5EF04")
+                addTestDevice("D7EC138A6CFA6EBCB57177B36DEE314F") // kdan samsung A30s
+                addTestDevice("E18469871E13E1FD7518B034A71C2139") // kdan google pixel2xl
+                addTestDevice("684617801CE0245AE8DCF7E093A8CBD6") // kdan htc D930x
+                addTestDevice("945D7E464B27F706E4E7D1D0D23E7909") // kdan ASUS X00RD(android Go)
                 if (!isPersonalized) {
                     addNetworkExtrasBundle(AdMobAdapter::class.java, Bundle().apply {
                         putString("npa", "1")