Add tsam to datapackage

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Description

Tsam option is now available for tabular reading module, but only for multi-period approach. Parameters need to be provided by two separate csvs.

• tsa_paramters (period, timesteps_per_period, order)

• [x] add example

• [x] adjust timeseries data of example

Fixes #138

Type of change

Please tick or delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

Please tick or delete options that are not relevant.

• [x] New and adjusted code is formatted using the pre-commit hooks
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [x] I have added new features/fixes to the CHANGELOG

[henhuy]

Why did yo mark it as "breaking change"? IMO, this should not interfere with older tabular versions?!

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Why did yo mark it as "breaking change"? IMO, this should not interfere with older tabular versions?!

I guess, I slipped...

Do the tests also fail on your side?

yes, I still have to adjust the component timeseries.

[FelixMau]

Regarding changed LP files please see #155

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This will only be merged after tsam-branch in solph is merged.