buildhistory: Generate installed-package-file-sizes.txt

:Release Notes:
Generate 2 reports one with package file sizes and one with size of
package installed on target image.

:Detailed Notes:
In upstream commit:
http://git.openembedded.org/openembedded-core/commit/?id=
85e4a77138381a6086d5ebd3a28cb5a94bc26a19 we have replaced size of
package file with real size used on target image. Size of package files
is important for over-the-air upgrades, so return package file sizes as
separate report.

:Testing Performed:
Only build tested.

:QA Notes:
No change in image.

:Issues Addressed:
[ES-277] Can we get list of ipk sizes (compressed) for installed
         packages too?

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: I2c1527e087079c6cfe1022b8775030faef9be673
Reviewed-on: https://g2g.palm.com/3643
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Tested-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>