Updating Westeros tutorials and adding new ones

[behnam-zakeri]

This PR updates the existing Westeros tutorials and adds a new tutorial for improving the learning experience of the users.

This PR does the following:

• It updates the text and improves the readabilaty of the Westeros tutorials, including Westros baseline, emission bound, emission tax, firm capacity, and flexible generation.
• It adds a new Westeros tutorial for showing how to add sub-annual time steps and assessing the impact of seasonality in a MESSAGE model

Doesn't need a test and documentation
Release notes updated.

[khaeru]

Thanks @behnam-zakeri for these improvements to the existing tutorials and the new one, which sets a high standard for clarity that I think learners will appreciate. I added some minor comments inline.

One additional change I spotted in westeros_baseline.ipynb that is not part of a line you changed: “The full framework documentation is available at https://messageix.iiasa.ac.at” — should be https://message.iiasa.ac.at.

[behnam-zakeri]

Thanks a lot @khaeru for a thorough review and constructive feedback. I applied the changes you mentioned.

[behnam-zakeri]

One additional change I spotted in westeros_baseline.ipynb that is not part of a line you changed: “The full framework documentation is available at https://messageix.iiasa.ac.at” — should be https://message.iiasa.ac.at.

Thanks @khaeru for noticing this. Corrected.

[khaeru]

Okay, will merge this now.

As discussed in today's MESSAGE meeting, the following PRs made were made against the behnam-zakeri:tutorials_update branch. After this PR merges that branch, it will be deleted. These can be re-opened as PRs agains iiasa:master; either individually or as a combined branch:

• Tutorial new: addon-technologies behnam-zakeri/message_ix#2 from OFR-IIASA:tutorial_update_addon.
• Tutroial new: adding fossil resources behnam-zakeri/message_ix#3 from OFR-IIASA:tutorial_update_fossil_resources.
• Tutorial update: Add share constraints behnam-zakeri/message_ix#4 from OFR-IIASA:tutorial_update_share.
• add tutorial on renewables part 1/3: firm capacity behnam-zakeri/message_ix#5 from OFR-IIASA:tutorial_update_renewables_firmc.
• add tutorial on renewables part 2/3: flexible generation  behnam-zakeri/message_ix#6 from OFR-IIASA:tutorial_update_renewables_flexg.
• add tutorial on renewables part 3/3: renewable resources behnam-zakeri/message_ix#7 from OFR-IIASA:tutorial_update_renewable_resources.

[khaeru]

Thanks @behnam-zakeri!