Add currency rates for budget calculation

app/Template/currency/index.php

@@ -0,0 +1,56 @@
+<div class="page-header">
+    <h2><?= t('Currency rates') ?></h2>
+</div>
+
+<?php if (! empty($rates)): ?>
+
+<table class="table-stripped">
+    <tr>
+        <th class="column-35"><?= t('Currency') ?></th>
+        <th><?= t('Rate') ?></th>
+    </tr>
+    <?php foreach ($rates as $rate): ?>
+    <tr>
+        <td>
+            <strong><?= $this->e($rate['currency']) ?></strong>
+        </td>
+        <td>
+            <?= n($rate['rate']) ?>
+        </td>
+    </tr>
+    <?php endforeach ?>
+</table>
+
+<hr/>
+<h3><?= t('Change reference currency') ?></h3>
+<?php endif ?>
+<form method="post" action="<?= $this->u('currency', 'reference') ?>" autocomplete="off">
+
+    <?= $this->formCsrf() ?>
+
+    <?= $this->formLabel(t('Reference currency'), 'application_currency') ?>
+    <?= $this->formSelect('application_currency', $currencies, $config_values, $errors) ?><br/>
+
+    <div class="form-actions">
+        <input type="submit" value="<?= t('Save') ?>" class="btn btn-blue"/>
+    </div>
+</form>
+
+<hr/>
+<h3><?= t('Add a new currency rate') ?></h3>
+<form method="post" action="<?= $this->u('currency', 'create') ?>" autocomplete="off">
+
+    <?= $this->formCsrf() ?>
+
+    <?= $this->formLabel(t('Currency'), 'currency') ?>
+    <?= $this->formSelect('currency', $currencies, $values, $errors) ?><br/>
+
+    <?= $this->formLabel(t('Rate'), 'rate') ?>
+    <?= $this->formText('rate', $values, $errors, array(), 'form-numeric') ?><br/>
+
+    <div class="form-actions">
+        <input type="submit" value="<?= t('Save') ?>" class="btn btn-blue"/>
+    </div>
+</form>
+
+<p class="alert alert-info"><?= t('Currency rates are used to calculate project budget.') ?></p>