beremiz

a0b645a934c9
OPC-UA, IDE: add CTN parameters to support OPC-UA encryption and authentication.

xmlclass had to be enhanced to support elements with no content in xsd:choice
<xsd:attribute name="Compiler" type="xsd:string" use="optional" default="gcc"/>
<xsd:attribute name="CFLAGS" type="xsd:string" use="optional" default=""/>
<xsd:attribute name="Linker" type="xsd:string" use="optional" default="gcc"/>
<xsd:attribute name="LDFLAGS" type="xsd:string" use="optional" default=""/>