* Add handler for .deb file formats.
* Add handler for .rpm file formats.
* update.
* move logic to general archive handler.
* update const.
* Add compile time guard.
* Remove redundant parens.
* Add checks to make sure we have the tools installed to extract arhives.
* Limit size of temp file for arhive reading.
* handle nested archives.
* add comment.
* use consistent name for tempEnv -> env
* fix handler fxn signature.
* Fix error where some files do not get properly scanned due to order of
extraction / decompression steps. Doing decompression first ensures
that a compressed archive (e.g., gzipped zip file), is handled
correctly.
