Minor issues for 0.2.0

[ischoegl]

This is a running list of minor issues that should be taken care of:

• Replace CTI/XML mechanisms by YAML mechanism
• Fix Parallel simulation failures on Linux #32 (same issue as Improve unittests / fix unittest failures #29)
• Check/minimize dependencies (e.g. pandas, pytables) ... ensure that environment.y ml already satisfies everything.
• Issue Make simulation modules independent of ctwrap code? #26 ... not a good idea after all; improvements of docstrings take care of this
• Remove output from YAML configuration (it will always be HDF) ... enable passing of arguments to write_hdf (e.g. force overwriting of existing groups)
• Include Make save method optional #36
• Replace all instances of io by pathlib
• Address NaturalNameWarnings (Address NaturalNameWarning #1)
• Include Make Parser more intuitive #35 (@ischoegl)
• Include Streamline Parser usage #42/Add YAML input/output to Parser object #43 (@ischoegl)
• Include Add tests for custom simulation modules #45 (@ischoegl)
• Finish implementation of Strategy, I.e. Allow for sampling of higher-dimensional parameter spaces #25 (@ischoegl)
• Fix bug in Fix adiabatic_flame.py module #49
• Bump version to 0.2.0

Some remaining edits of Sphinx documentation

• Move jupyter notebooks into a dedicated docs/examples folder (from current docs/pages) (@ischoegl ... see Add tests for custom simulation modules #45)
• Add descriptions of how to run batch jobs from commandline to overview.rst, ignition.rst and adiabatic_flame.rst (see README.rst)
• Check and fix broken links in Sphinx documentation (e.g. several links in README.rst)
• Add instructions for conda environment to INSTALL.rst - see e.g. camsym
• Update docstrings of SimulationHandler ... make description more generic (not tied to minimal example)

[ischoegl]

@DavidAkinpelu ... streamlined the code some more (there were some changes to main). I'm not planning to change anything else until you're done with the remaining items above.

[DavidAkinpelu]

Okay

[ischoegl]

@DavidAkinpelu I'm done with my updates, so it's just documentation now.