Extensions to the MZZipUnzipApp.

Extensions to the MZZipUnzipApp. These extensions add methods to zip files
from the disk to a zip file and to unzip a zipped file to files on the disk. The
unzipped files will have the date/time of the original pre-zipped files.

The vast majority of the functionality of the original extensions has been added to VA Smalltalk v8.6.2.
There is one class side method left, #getZippedFilesInfo:. I'm hopeful it will be added in some way.

The following class side methods are gone but can be replaced with calls like this:

change:
MZZipArchive unZip: zipName to: aPath
to:
(MZZipArchive openRead: zipName) unZipFiles: #() to: aPath


change:
MZZipArchive unZipFiles: fileNameArray from: aZipFile to: aPath
to:
(MZZipArchive openRead: zipName) unZipFiles: fileNameArray to: aPath


change:
MZZipArchive zipFile: fullFileName into: zipFileName
to:
(MZZipArchive openWrite: zipFileName) zipFiles: (Array with: fullFileName) add: true


change:
MZZipArchive zipFile: fullFileName to: zipFileName
to:
(MZZipArchive openWrite: zipFileName) zipFiles: (Array with: fullFileName)


change:
MZZipArchive zipFiles: fullFileNameArray into: zipFileName
to:
(MZZipArchive openWrite: zipFileName) zipFiles: fullFileNameArray add: true


change:
MZZipArchive zipFiles: fullFileNameArray into: zipFileName
to:
(MZZipArchive openWrite: zipFileName) zipFiles: fullFileNameArray


change:
zipFilesTest: fullFileNameArray into: zipFileName add: add append: append
to:
(MZZipArchive openWrite: zipFileName) zipFiles: fullFileNameArray add: add append: append

MIT