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/fixed_assets.php

@@ -0,0 +1,30 @@
+<?php
+
+return [
+    "add_fixed_asset" => "Add Fixed Asset",
+    "view_fixed_assets" => "View Fixed Assets",
+    "dashboard" => "Dashboard",
+    "fixed_assets" => "Fixed Assets",
+    "create" => "Create",
+    "activate" => "Activate",
+    "edit" => "Edit",
+    "delete" => "Delete",
+    "asset_name" => "Asset Name",
+    "serial_number" => "Serial Number",
+    "cost_price" => "Cost Price",
+    "acquisition_date" => "Date Of Acquisition",
+    "depreciation" => "Depreciation Per Annum (%)",
+    "item_condition" => "Item Condition :",
+    "supplier" => "Supplier",
+    "fixed_asset_account" => "Fixed Asset Account",
+    "bank_account" => "Bank Account",
+    "warranty_expiry" => "Warranty Expiry",
+    "description" => "Description",
+    "create_fixed_asset" => "Create Fixed Asset",
+    "add" => "Add",
+    "update" => "Update",
+    "cancel" => "cancel",
+    "activate_banks" => "Activate Fixed Assets",
+    "export_to_pdf" => "Export To PDF Or Print.",
+    "payment_type" => "Payment Type"
+];