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/public/elite/bower_components/datatables-plugins/i18n/Slovak.lang

@@ -0,0 +1,30 @@
+/**
+ * Slovak translation
+ *  @name Slovak
+ *  @anchor Slovak
+ *  @author <a href="https://github.com/dlugos">Ivan Dlugoš</a>
+ *  @author (original translation) <a href="http://miskerik.com/">Maroš Miškerik</a>
+ */
+{
+	"sEmptyTable":     "Nie sú k dispozícii žiadne dáta",
+	"sInfo":           "Záznamy _START_ až _END_ z celkom _TOTAL_",
+	"sInfoEmpty":      "Záznamy 0 až 0 z celkom 0 ",
+	"sInfoFiltered":   "(vyfiltrované spomedzi _MAX_ záznamov)",
+	"sInfoPostFix":    "",
+  	"sInfoThousands":  ",",
+	"sLengthMenu":     "Zobraz _MENU_ záznamov",
+	"sLoadingRecords": "Načítavam...",
+	"sProcessing":     "Spracúvam...",
+	"sSearch":         "Hľadať:",
+	"sZeroRecords":    "Nenašli sa žiadne vyhovujúce záznamy",
+	"oPaginate": {
+		"sFirst":    "Prvá",
+		"sLast":     "Posledná",
+		"sNext":     "Nasledujúca",
+		"sPrevious": "Predchádzajúca"
+	},
+	"oAria": {
+		"sSortAscending":  ": aktivujte na zoradenie stĺpca vzostupne",
+		"sSortDescending": ": aktivujte na zoradenie stĺpca zostupne"
+	}
+}