UTF characters not rendered correctly in plugin information

[rbsec]

Description of the Issue

UTF characters in the plugin information are not rendered correctly in plugin manager when the plugin is viewed (for example, when trying to install a new plugin).

The author of the Npp Xml Treeview plugin is João Rosa but this is shown in Plugin Manager as João Rosa

The plugin still installs and works as expected, so this is a minor issue.

Version Information

Plugin manager version : 1.4.9.0 (x64)
Notepad++ version: 7.4.2 (x64)
OS: Windows 10 1703 Enterprise (x64)

[chcg]

This issue is caused by the usage of UTF-8 in the plugin xml list and the handling as wchar_t aka UFT-16 in the tinyxml parsing. So some transformation with e.g. MultiByteToWideChar() is missing here.

This affects all data from the plugin list, not just the author field like reported above.