Add support for more languages in highlightJS

For the markdown view, added more scientific languages to highlightJS (used by the showdown converter). Languages included in the package can be viewed in the README in the showdown-highlight component folder.

relates to #820

src/components/showdown/extensions/showdown-highlight/README.md

@@ -7,160 +7,54 @@ the browser as well as on the server. It works with pretty much any
 markup, doesn’t depend on any framework, and has automatic language
 detection.
 
-## Getting Started
-
-The bare minimum for using highlight.js on a web page is linking to the
-library along with one of the styles and calling
-[`initHighlightingOnLoad`][1]:
-
-```html
-<link rel="stylesheet" href="/path/to/styles/default.css">
-<script src="/path/to/highlight.pack.js"></script>
-<script>hljs.initHighlightingOnLoad();</script>
-```
-
-This will find and highlight code inside of `<pre><code>` tags; it tries
-to detect the language automatically. If automatic detection doesn’t
-work for you, you can specify the language in the `class` attribute:
-
-```html
-<pre><code class="html">...</code></pre>
-```
-
-The list of supported language classes is available in the [class
-reference][2].  Classes can also be prefixed with either `language-` or
-`lang-`.
-
-To make arbitrary text look like code, but without highlighting, use the
-`plaintext` class:
-
-```html
-<pre><code class="plaintext">...</code></pre>
-```
-
-To disable highlighting altogether use the `nohighlight` class:
-
-```html
-<pre><code class="nohighlight">...</code></pre>
-```
-
-## Custom Initialization
-
-When you need a bit more control over the initialization of
-highlight.js, you can use the [`highlightBlock`][3] and [`configure`][4]
-functions. This allows you to control *what* to highlight and *when*.
-
-Here’s an equivalent way to calling [`initHighlightingOnLoad`][1] using
-jQuery:
-
-```javascript
-$(document).ready(function() {
-  $('pre code').each(function(i, block) {
-    hljs.highlightBlock(block);
-  });
-});
-```
-
-You can use any tags instead of `<pre><code>` to mark up your code. If
-you don't use a container that preserves line breaks you will need to
-configure highlight.js to use the `<br>` tag:
-
-```javascript
-hljs.configure({useBR: true});
-
-$('div.code').each(function(i, block) {
-  hljs.highlightBlock(block);
-});
-```
-
-For other options refer to the documentation for [`configure`][4].
-
-
-## Web Workers
-
-You can run highlighting inside a web worker to avoid freezing the browser
-window while dealing with very big chunks of code.
-
-In your main script:
-
-```javascript
-addEventListener('load', function() {
-  var code = document.querySelector('#code');
-  var worker = new Worker('worker.js');
-  worker.onmessage = function(event) { code.innerHTML = event.data; }
-  worker.postMessage(code.textContent);
-})
-```
-
-In worker.js:
-
-```javascript
-onmessage = function(event) {
-  importScripts('<path>/highlight.pack.js');
-  var result = self.hljs.highlightAuto(event.data);
-  postMessage(result.value);
-}
-```
-
-
-## Getting the Library
-
-You can get highlight.js as a hosted, or custom-build, browser script or
-as a server module. Right out of the box the browser script supports
-both AMD and CommonJS, so if you wish you can use RequireJS or
-Browserify without having to build from source. The server module also
-works perfectly fine with Browserify, but there is the option to use a
-build specific to browsers rather than something meant for a server.
-Head over to the [download page][5] for all the options.
-
-**Don't link to GitHub directly.** The library is not supposed to work straight
-from the source, it requires building. If none of the pre-packaged options
-work for you refer to the [building documentation][6].
-
-**The CDN-hosted package doesn't have all the languages.** Otherwise it'd be
-too big. If you don't see the language you need in the ["Common" section][5],
-it can be added manually:
-
-```html
-<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/go.min.js"></script>
-```
-
-**On Almond.** You need to use the optimizer to give the module a name. For
-example:
-
-```
-r.js -o name=hljs paths.hljs=/path/to/highlight out=highlight.js
-```
-
-
-### CommonJS
-
-You can import Highlight.js as a CommonJS-module:
-
-```bash
-npm install highlight.js --save
-```
-
-In your application:
-
-```javascript
-import hljs from 'highlight.js';
-```
-
-The default import imports all languages! Therefore it is likely to be more efficient to import only the library and the languages you need:
-
-```javascript
-import hljs from 'highlight.js/lib/highlight';
-import javascript from 'highlight.js/lib/languages/javascript';
-hljs.registerLanguage('javascript', javascript);
-```
-
-To set the syntax highlighting style, if your build tool processes CSS from your JavaScript entry point, you can import the stylesheet directly into your CommonJS-module:
-
-```javascript
-import hljs from 'highlight.js/lib/highlight';
-import 'highlight.js/styles/github.css'
-```
+## Languages supported
+
+The package downloaded supported the languages listed below. The list of all supported languages can be viewed here: https://highlightjs.org/download/
+
+Apache
+ArcGIS Arcade
+Bash
+C#
+CoffeeScript
+C++
+CSS
+Diff
+Excel
+Fortran
+GAMS
+GAUSS
+HTML, XML
+HTTP
+Ini, TOML
+IRPF90
+Java
+JavaScript
+JSON
+Julia
+Julia REPL
+Makefile
+Markdown
+Mathematica
+Matlab
+Maxima
+Mizar
+Nginx
+Objective-C
+OpenSCAD
+Perl
+PHP
+Properties
+Python
+R
+Ruby
+SAS
+Scilab
+Shell Session
+SQL
+Stata
+TeX
+VB.NET
+VBScript
 
 ## License