Added parsing of multiple Channel UIDs

Signed-off-by: Alex Tugarev <telekom@tugarev.de>
Removing ItemChannelLinks when their origin model file gets removed from model repository

Signed-off-by: Alex Tugarev <telekom@tugarev.de>
Merge pull request #118 from qivicon/multiple-links-in-items-dsl-440351

Allow multiple links in binding configuration in Items DSL (440351)