Remove label parameter where it is not needed

[SabineHaas]

Fix #375

Changes proposed in this pull request:

• Delete unnecessary parameter label from input csv files; label is now set by filenames (for project_data, economic_data, simulation_settings) and column names (for energyConsumption, energyConversion, energyProduction, energyProviders), special for storage: filename + column name
• Note in documentation that the column headers need to be unique amongst all files

The following steps were realized, as well (if applies):

• Use in-line comments to explain your code
• Write docstrings to your code (example docstring)
• For new functionalities: Explain in readthedocs
• Write test(s) for your new patch of code (pytests, assertion debug messages)
• Update the CHANGELOG.md
• Apply black (black . --exclude docs/)
• Check if benchmark tests pass locally (EXECUTE_TESTS_ON=master pytest)

Please mark above checkboxes as following:

• Open
• Done

❌ Check not applicable to this PR

_{For more information on how to contribute check the CONTRIBUTING.md.}

[SabineHaas]

@smartie2076, I left fixcost.csv as it is, as it is not used. If it's planned to be used in the future we could use the column headers as labels.

[smartie2076]

@smartie2076, I left fixcost.csv as it is, as it is not used. If it's planned to be used in the future we could use the column headers as labels.

Ok

[Bachibouzouk]

* Delete unnecessary parameter label from input csv files; label is now set by filenames (`project_data`, `economic_data`, `simulation_settings`) and column names (`energyConsumption`, `energyConversion`, `energyProduction`, `energyProviders`), special for storage: `filename` + `column name`

aren't energyConsumption etc.. also filenames?

[SabineHaas]

* Delete unnecessary parameter label from input csv files; label is now set by filenames (`project_data`, `economic_data`, `simulation_settings`) and column names (`energyConsumption`, `energyConversion`, `energyProduction`, `energyProviders`), special for storage: `filename` + `column name`

aren't energyConsumption etc.. also filenames?

I added the word "for" to make it clearer:
Delete unnecessary parameter label from input csv files; label is now set by filenames (for project_data, economic_data, simulation_settings) and column names (for energyConsumption, energyConversion, energyProduction, energyProviders), special for storage: filename + column

I would add this to the changelog if you agree.

[Bachibouzouk]

Did you run the test with EXECUTE_TESTS_ON=master? if yes, then I approve the PR

[SabineHaas]

Did you run the test with EXECUTE_TESTS_ON=master? if yes, then I approve the PR

Yes, I did. Thanks for reviewing!

[Bachibouzouk]

If it is your own branch, you can do rebase instead of merging dev into the branch :)

[SabineHaas]

If it is your own branch, you can do rebase instead of merging dev into the branch :)

with rebase I got a merge conflict, while with merging I didn't..