add Coven Scans (#2392)

* add Coven Scans

* fix coven scan

* add coven scans icon

src/pt/covenscan/build.gradle

@@ -0,0 +1,10 @@
+ext {
+    extName = 'Coven Scan'
+    extClass = '.CovenScan'
+    themePkg = 'madara'
+    baseUrl = 'https://cvnscan.com'
+    overrideVersionCode = 0
+    isNsfw = true
+}
+
+apply from: "$rootDir/common.gradle"

src/pt/covenscan/src/eu/kanade/tachiyomi/extension/pt/covenscan/CovenScan.kt

@@ -0,0 +1,22 @@
+package eu.kanade.tachiyomi.extension.pt.covenscan
+
+import eu.kanade.tachiyomi.multisrc.madara.Madara
+import eu.kanade.tachiyomi.network.interceptor.rateLimit
+import okhttp3.OkHttpClient
+import java.text.SimpleDateFormat
+import java.util.Locale
+import java.util.concurrent.TimeUnit
+
+class CovenScan : Madara(
+    "Coven Scan",
+    "https://cvnscan.com",
+    "pt-BR",
+    SimpleDateFormat("MMMM dd, yyyy", Locale("pt", "BR")),
+) {
+
+    override val client: OkHttpClient = super.client.newBuilder()
+        .rateLimit(1, 2, TimeUnit.SECONDS)
+        .build()
+
+    override val useNewChapterEndpoint = true
+}