[Tools] Fix static analyis issues

This commit addresses issues identified by LGTM for the various
independent (and mostly-independent) files in the Tools subdirectory.
The vast majority of the issues are trivial, and are things like unused
imports or catching BaseException. There was one true bug identified, a
global variable being changed in a function where it was not marked
global, but it only affected output quantity (the variable is named
"VERBOSE"). A couple of other issues identified variables that appear to
represent no-longer-existing options in the code. The options were left,
but a deprecation printout replaces the variable in the event the option
is provided.

src/Tools/ArchiveNameFromVersionHeader.py

@@ -3,7 +3,7 @@
 #  A convenience script to generate a deployment archive name of the form
 #  FreeCAD_{Major Version Number}.{Minor Version Number}-{Git Revision Count}.{Git Short SHA}-{OS}-{Arch}
 #
-import sys,string,getopt,platform
+import sys,getopt,platform
 
 def deserializeVersionHeader(path):
     version = {}