Resolve "Make IntelliO3-ts v1.0 available as reference"

Closes #131

See merge request toar/mlair!229

Resolve "experiment name with mixed sampling"

See merge request toar/mlair!230

Resolve "rotate labels in competitive skill score plot"

See merge request toar/mlair!228

Resolve "Competitor Models"

See merge request toar/mlair!196

competitors and their path can now be named in a workflow setup, comments for development have been removed now, /close #198

skill score statistics require now more explicitly named indicators for forecast, observation and reference to prevent error arising from auto-filling

new comparison possibility is included in postprocessing but currently uses hardcoded models, some parts are marked as comments for easier developments and have to be activated again for publication

# Conflicts:
#	mlair/run_modules/post_processing.py

Resolve "release v1.2.0"

Closes #211, #224, #226, #213, #229, #220, #107, #189, #231, #232, #235, #240, #241, #238, #242, #244, #245, #243, #237, and #257

See merge request toar/mlair!225

Develop

See merge request toar/mlair!226

Resolve "new tests for configuration"

See merge request toar/mlair!223

Resolve "new tests for tracker plot"

See merge request toar/mlair!224

Resolve "new test for abstract workflow"

See merge request toar/mlair!221

Resolve "new tests for default workflow"

See merge request toar/mlair!222

Resolve "new tests for helper testing"

See merge request toar/mlair!220

new tests for testing helpers, corrected wrong usage of PyTestAllEqual and also refactored this method, /close #242

Resolve "new tests for advanced data handler"

See merge request toar/mlair!219

file advanced data handler was outdated and just a collection of "testing" scripts, moved some content to the data handler neighbors for a better start on implementing tests, /close #238