Move import logic to separate activity to fix a couple of issues

Fixes #456.
Fixes #670.

app/src/main/java/com/beemdevelopment/aegis/ui/models/ImportEntry.java

@@ -3,32 +3,19 @@ package com.beemdevelopment.aegis.ui.models;
 import com.beemdevelopment.aegis.vault.VaultEntry;
 
 import java.io.Serializable;
-import java.util.UUID;
 
 public class ImportEntry implements Serializable {
-    private UUID _uuid;
-    private String _name;
-    private String _issuer;
+    private final VaultEntry _entry;
 
     private transient Listener _listener;
     private boolean _isChecked = true;
 
     public ImportEntry(VaultEntry entry) {
-        _uuid = entry.getUUID();
-        _name = entry.getName();
-        _issuer = entry.getIssuer();
+        _entry = entry;
     }
 
-    public UUID getUUID() {
-        return _uuid;
-    }
-
-    public String getName() {
-        return _name;
-    }
-
-    public String getIssuer() {
-        return _issuer;
+    public VaultEntry getEntry() {
+        return _entry;
     }
 
     public void setOnCheckedChangedListener(Listener listener) {