Add very basic product import via CSV

agent/modals/product/product_import.php

@@ -0,0 +1,32 @@
+<?php
+
+require_once '../../../includes/modal_header.php';
+
+ob_start();
+
+?>
+<div class="modal-header bg-dark">
+    <h5 class="modal-title"><i class="fa fa-fw fa-box-open mr-2"></i>Import Products</h5>
+    <button type="button" class="close text-white" data-dismiss="modal">
+        <span>&times;</span>
+    </button>
+</div>
+<form action="post.php" method="post" enctype="multipart/form-data" autocomplete="off">
+    <input type="hidden" name="csrf_token" value="<?= $_SESSION['csrf_token'] ?>">
+    <div class="modal-body">
+        <p><strong>Format csv file with headings & data:</strong><br>Product Name, Description, Price</p>
+        <hr>
+        <div class="form-group my-4">
+            <input type="file" class="form-control-file" name="file" accept=".csv" required>
+        </div>
+        <hr>
+        <div>Download: <a class="text-bold" href="post.php?download_products_csv_template">sample csv template</a></div>
+    </div>
+    <div class="modal-footer">
+        <button type="submit" name="import_products_csv" class="btn btn-primary text-strong"><i class="fas fa-upload mr-2"></i>Import</button>
+        <button type="button" class="btn btn-light" data-dismiss="modal"><i class="fa fa-times mr-2"></i>Cancel</button>
+    </div>
+</form>
+
+<?php
+require_once '../../../includes/modal_footer.php';