* Finished ProgressReporter
* Integrated ProgressReporter into CopyEngine and UnzipEngine.
* Integrated unzipping to main installer engine. Since there are currently no
.zip files in the _packages_

* Finished ProgressReporter
* Integrated ProgressReporter into CopyEngine and UnzipEngine.
* Integrated unzipping to main installer engine. Since there are currently no
.zip files in the _packages_ folder (and not even a _packages_ folder
itself), this is completely invisible, but it works.

TODO: Adjust the build system to optionally copy packages into _packages_
instead of extracting them. Like for the CD build profile mode.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32967 a95241bf-73f2-0310-859d-f6bbb57e9c96

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* Changed the UnzipEngine to be a BCommandPipe::LineReader itself, this
simplified the code somewhat (maintaining of state).
* UnzipEngine does a more complete parsing of the .zip contents and main

* Changed the UnzipEngine to be a BCommandPipe::LineReader itself, this
simplified the code somewhat (maintaining of state).
* UnzipEngine does a more complete parsing of the .zip contents and maintains
a hashmap of item names to byte size entries. During unzipping later on, this
allows to know how many bytes were unzipped for the given item.
* Test whether folders from the .zip already exists, and exclude them from the
item count, since unzip will not report creating folders that already
existed.
* Added the unzipping of packages in the _package_ folder to WorkerThread, but
it is currently commented out to keep Installer in a working state. It would
work, but the problem is that the progress bar would reset itself at the
moment (for every package).
* Started a ProgressReporter class that will later be used by all CopyEngine and
UnzipEngine instances. This is work in progress and not yet part of the build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32959 a95241bf-73f2-0310-859d-f6bbb57e9c96

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