Moves the ContactList cache lists to AccountViewModel, where it can be disposed more efficiently.

quartz/src/main/java/com/vitorpamplona/quartz/crypto/KeyPair.kt

@@ -20,6 +20,7 @@
  */
 package com.vitorpamplona.quartz.crypto
 
+import com.vitorpamplona.quartz.encoders.HexKey
 import com.vitorpamplona.quartz.encoders.toHexKey
 
 class KeyPair(
@@ -29,6 +30,7 @@ class KeyPair(
 ) {
     val privKey: ByteArray?
     val pubKey: ByteArray
+    val pubKeyHex: HexKey
 
     init {
         if (privKey == null) {
@@ -52,6 +54,8 @@ class KeyPair(
                 this.pubKey = pubKey
             }
         }
+
+        this.pubKeyHex = this.pubKey.toHexKey().intern()
     }
 
     override fun toString(): String = "KeyPair(privateKey=${privKey?.toHexKey()}, publicKey=${pubKey.toHexKey()}"