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/tinymce/plugins/legacyoutput/plugin.min.js

@@ -0,0 +1 @@
+!function(e){e.PluginManager.add("legacyoutput",function(t,n,r){t.settings.inline_styles=!1,t.on("init",function(){var n="p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li,table,img",r=e.explode(t.settings.font_size_style_values),i=t.schema;t.formatter.register({alignleft:{selector:n,attributes:{align:"left"}},aligncenter:{selector:n,attributes:{align:"center"}},alignright:{selector:n,attributes:{align:"right"}},alignjustify:{selector:n,attributes:{align:"justify"}},bold:[{inline:"b",remove:"all"},{inline:"strong",remove:"all"},{inline:"span",styles:{fontWeight:"bold"}}],italic:[{inline:"i",remove:"all"},{inline:"em",remove:"all"},{inline:"span",styles:{fontStyle:"italic"}}],underline:[{inline:"u",remove:"all"},{inline:"span",styles:{textDecoration:"underline"},exact:!0}],strikethrough:[{inline:"strike",remove:"all"},{inline:"span",styles:{textDecoration:"line-through"},exact:!0}],fontname:{inline:"font",attributes:{face:"%value"}},fontsize:{inline:"font",attributes:{size:function(t){return e.inArray(r,t.value)+1}}},forecolor:{inline:"font",attributes:{color:"%value"}},hilitecolor:{inline:"font",styles:{backgroundColor:"%value"}}}),e.each("b,i,u,strike".split(","),function(e){i.addValidElements(e+"[*]")}),i.getElementRule("font")||i.addValidElements("font[face|size|color|style]"),e.each(n.split(","),function(e){var t=i.getElementRule(e);t&&(t.attributes.align||(t.attributes.align={},t.attributesOrder.push("align")))})}),t.addButton("fontsizeselect",function(){var e=[],n="8pt=1 10pt=2 12pt=3 14pt=4 18pt=5 24pt=6 36pt=7",r=t.settings.fontsize_formats||n;return t.$.each(r.split(" "),function(t,n){var r=n,i=n,o=n.split("=");o.length>1&&(r=o[0],i=o[1]),e.push({text:r,value:i})}),{type:"listbox",text:"Font Sizes",tooltip:"Font Sizes",values:e,fixedWidth:!0,onPostRender:function(){var e=this;t.on("NodeChange",function(){var n;n=t.dom.getParent(t.selection.getNode(),"font"),n?e.value(n.size):e.value("")})},onclick:function(e){e.control.settings.value&&t.execCommand("FontSize",!1,e.control.settings.value)}}}),t.addButton("fontselect",function(){function e(e){e=e.replace(/;$/,"").split(";");for(var t=e.length;t--;)e[t]=e[t].split("=");return e}var n="Andale Mono=andale mono,monospace;Arial=arial,helvetica,sans-serif;Arial Black=arial black,sans-serif;Book Antiqua=book antiqua,palatino,serif;Comic Sans MS=comic sans ms,sans-serif;Courier New=courier new,courier,monospace;Georgia=georgia,palatino,serif;Helvetica=helvetica,arial,sans-serif;Impact=impact,sans-serif;Symbol=symbol;Tahoma=tahoma,arial,helvetica,sans-serif;Terminal=terminal,monaco,monospace;Times New Roman=times new roman,times,serif;Trebuchet MS=trebuchet ms,geneva,sans-serif;Verdana=verdana,geneva,sans-serif;Webdings=webdings;Wingdings=wingdings,zapf dingbats",i=[],o=e(t.settings.font_formats||n);return r.each(o,function(e,t){i.push({text:{raw:t[0]},value:t[1],textStyle:t[1].indexOf("dings")==-1?"font-family:"+t[1]:""})}),{type:"listbox",text:"Font Family",tooltip:"Font Family",values:i,fixedWidth:!0,onPostRender:function(){var e=this;t.on("NodeChange",function(){var n;n=t.dom.getParent(t.selection.getNode(),"font"),n?e.value(n.face):e.value("")})},onselect:function(e){e.control.settings.value&&t.execCommand("FontName",!1,e.control.settings.value)}}})})}(tinymce);