Fixed XSS vulnerabilities in graphical view components

[Patrykb0802]

Describe the bug This issue reports about XSS vulnerabilities found in graphical view components. For tests we were using project from this file: Scada-LTS-test-2669.zip

List of bugs

• [x] In Enchanced image chart, add data point to chart, alert->"virutal ds" && alert->"Point details -> Name"
• [ ] In Button script, Text = => alert->"abc"
• [ ] In Simple Point, Edit graphical render => Display point name = true, Style attribute = => alert->"Point details -> Name"
• [ ] In Simple compound, Name = => alert->abc

All alerts appear when graphical view component is loaded.

Expected behavior All fields that had any and displayed alert, should be escaped and treated as string.

Desktop:

• OS: Linux Mint
• Browser: Chrome
• Version: <= 2.7.5.4

#2116