Fix Android XML format special characters escape/ unescape

[arisktfx]

Problem and/or solution

Special characters like & or \n remained unescape when importing the file, leading to be wrongly displayed in the editor

Reviewer checklist

Code:

• Change is covered by unit-tests
• Code is well documented, well styled and is following best practices
• Performance issues have been taken under consideration
• Errors and other edge-cases are handled properly

PR:

• Problem and/or solution are well-explained
• Commits have been squashed so that each one has a clear purpose
• Commits have a proper commit message according to TEM