[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/LicenseChecker.py

@@ -84,7 +84,7 @@ def parsefile(fn):
                     return
 
         print ("Missing license text in file %s") % (fn)
-    except:
+    except Exception:
         pass
 
 if __name__ == "__main__":