Zip output

[zZnghialamZz]

This PR is for the zip mode ticket, which included:

• CLI support for additional zip files/folders
• Zip the output packed file and the additional files/folder
• A simple logger for logging current status, errors

[zZnghialamZz]

I added a commit for simplify the CLI & custom path support for zipping method as we discussed.

Usage: pyscriptpacker [options] module1,module2,.. path1,path2,.. output

Convert Python packages into a single file which makes the distribution of
your projects easier, provide options for compressing the source code if the
users want to add a security layer to it.

Options:

  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -c, --compress        compress the Python source.

  -z FILEs,FOLDERs,.., --zip=FILEs,FOLDERs,..
                        zip the output and the specified files/folders to the
                        root of the zip file or using the custom path provided
                        by the user, eg: -z file:path/to/file. User can
                        provide None if only the output is needed to be
                        zipped.

[zZnghialamZz]

I think the branch is ready for review, to summary this PR included:

• CLI support for additional zip files/folders
• Zip the output packed file and the additional files/folder (custom path support)
• A simple logger for logging current status, errors
• Main file support for the bundle script.
• A small unit test case for the main file.