COMP: Use c++ style comments in pyBase.i

While testing the next swig version (which is not out yet),
I got the following errors:

Wrapping/Typedefs/pyBase.i:385: Error: Unknown SWIG preprocessor directive: TODO
Wrapping/Typedefs/pyBase.i:386: Error: Unknown SWIG preprocessor directive: template
Wrapping/Typedefs/pyBase.i:387: Error: Unknown SWIG preprocessor directive: void
Wrapping/Typedefs/pyBase.i:388: Error: Unknown SWIG preprocessor directive: const
Wrapping/Typedefs/pyBase.i:389: Error: Unknown SWIG preprocessor directive: FixedArray

This is related to changes in swig for # preprocessor lines and comments.
https://github.com/swig/swig/issues/217

This patch just changes the comments to use // instead of #, thus fixing the error.

Change-Id: I4f93d4329812edb6f8991ebcfa394031c065443c
Merge topic 'FixComments'

b9202ba0 COMP: Use c++ style comments in pyBase.i