tar commands and windows paths

[hhaensel]

• modified tar commands for backward compatibility (e.g. busybox 1.24.1, see Busybox tar does not support requested options #162) and other compression types
• parse_tar_list on windows returns windows paths
• busybox tarand tar work successfully on Windows 10 if compression tools are installed (bzip)

Please comment, whether this sounds reasonable to you

[hhaensel]

Btw, in Julia 1.1.1 busybox is no longer bundled. Is that a problem for BinaryProvider?
I received a warning

[hhaensel]

Shall we merge this, as this seems to fix #162?
Just one note on the -C option of tar: although the help comment suggests the usage -C <directoryname> it also accepts -C<directoryname>. During testing I found that on windows tar can be confused by the space when using absolute filepaths. This is why I left out the space.

[staticfloat]

Thanks @hhaensel, be sure to ping me via @staticfloat so that I know when you have things like this for me to review. Otherwise, I may not see them for a while. :)