Fixed substitution of the nested parameters.

Signed-off-by: Oleg Nenashev <nenashev@synopsys.com>
Added support of the label-specific exported paths and documentation.

Signed-off-by: Oleg Nenashev <nenashev@synopsys.com>
Merge pull request #8 from synopsys-arc-oss/additional-exported-paths

Added support of the label-specific exported paths (JENKINS-18774)