Version1.0 incorrect versioning label (remains 0.1)

[AustenWallis]

To note:
I've been fresh installing Sirocco for HPCs and noticed the main-branch/1.0 tag has the source version number still set as 0.1.

The result when looking at a sirocco runs log files is "Python version 0.1" ... "python is running with X processes".

I imagine this will be confusing for new users as this is likely the first log info they'll read when doing their first run.
This will likely be fixed when a new version number is created (1.1).
Updating the code so PYTHON -> Sirocco in the log will be useful too when the next new version is introduced.

But opening this issue now as a notice until resolved in next iteration