Fix issue with permissions when copying dir contents

Fix issue with permissions when copying dir contents

[Bug]           Permission denied error when trying to copy read-only directories recursively.
[Cause]         boost::filesystem::copy applied permissions immediately, which in some cases caused
                error when trying to write something inside processed directory.
[Solution]      Instead of using boost::filesystem::copy on directories, split action into three
                sub-actions:
                  * Create new directory with boost::filesystem::create_directory
                  * Call copyDirContentsRec() to copy contents of processed directory
                  * Apply source directory permissions and ownership
[Verification]  Build, install, run tests.

Change-Id: Ifdec110a595dcecd113abf4065dd1cdc03f2d3cb