Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/resources/lang/en/payment_items.php

@@ -0,0 +1,25 @@
+<?php
+return [
+    "activate" => "Activate",
+    "create_payment_item" => "Create Payment Item",
+    "home" => "Home",
+    "finance_home" => "Finance Home",
+    "item_name" => "Item Name",
+    "unit_cost" => "Unit Cost",
+    "expense_account" => "Expense Account",
+    "payable_account" => "Payable Account",
+    "submit" => "Submit",
+    "cancel" => "Cancel",
+    "edit_payment_item" => "Edit Payment Item",
+    "payment_items" => "Payment Items",
+    "inactive_payment_items" => "Inactive Payment Items",
+    "export_data_to_csv_excel" => "Export data to Copy, CSV, Excel, PDF & Print",
+    "name" => "Name",
+    "action" => "Action",
+    "activate" => "Activate",
+    "edit" => "Edit",
+    "delete" => "Delete",
+    "add_payment_item" => "Add Payment Item",
+    "view_payment_items" => "View Payment Items",
+    "inactive_payment_item" => "Inactive Payment Item"
+];