ENH: Improve mangling of itktiff library.

Separate the defines into a Common and Windows-Only section.

Include windows/bash commands to generate suggested symbols to include.

Remove old defines for symbols which no longer exist.

Sort the defines alphabetically.

Change-Id: I5a2af1cf8c9e7746b046cb2893988190a13ef1d7
Merge topic 'enh-tiff-mangling'

bedddeb ENH: Improve mangling of itktiff library.