Fix to resolve conflicts with switching CDOC2 feature and CryptoLib encryption. (#275)

MOPPAND-1648 Fix to resolve conflicts with switching CDOC2 feature and CryptoLib encryption.

Author: ambrose40

commons-lib/src/main/kotlin/ee/ria/DigiDoc/common/Constant.kt

@@ -115,7 +115,7 @@ object Constant {
     const val CDOC1_EXTENSION = "cdoc"
 
     // TODO: Change to "cdoc2" when enabled
-    const val CDOC2_EXTENSION = "cdoc"
+    const val CDOC2_EXTENSION = "cdocna"
 
     const val LDAP_PORT = 636
     const val CERT_BINARY_ATTR = "userCertificate;binary"