update zip4j to latest version (multiple issues fixed + new features) #30
Description
zip4j before v2.3.0 has issue with ultra compression level = 9 (it's unavailable) - srikanth-lingala/zip4j#124
Also, right now we cannot use killer-feature, which have been introduced in zip4j v2.4.0 - Support for 7-Zip format split files (.zip.001, .zip.002, etc).
I think we need update zip4j from v2.2.6 to latest version (currently v2.5.2) and bump nativescript-zip major version.