Final_gas_pipelines

[Eddy-JV]

Closes #18 #220 #236 (if applicable).

Changes proposed in this Pull Request

This PR adds a new rule to the workflow to prepare an existing gas network representation between the nodes:

1. The user is able to choose in the .config file to either:

   • Add a custom gas network .csv file.
   • Choose between two built-in datasets:
     • Global: Global Energy Monitor (GGIT)
     • European: SciGrid (IGGIELGN)
   • Or just use a uniform fictive network between all nodes.

2. The rule was tested for Voronoi and GADM clustering.

3. You can see some examples of existing gas network and result below:
   
   

Checklist

• I tested my contribution locally and it seems to work fine.
• Code and workflow changes are sufficiently documented.
• Newly introduced dependencies are added to envs/environment.yaml and envs/environment.docs.yaml.
• Changes in configuration options are added in all of config.default.yaml, config.tutorial.yaml, and test/config.test1.yaml.
• Changes in configuration options are also documented in doc/configtables/*.csv and line references are adjusted in doc/configuration.rst and doc/tutorial.rst.
• A note for the release notes doc/release_notes.rst is amended in the format of previous release notes, including reference to the requested PR.

[energyLS]

Revert back to 4

[hazemakhalek]

Please revert back the countries to ["MA"] as discussed in a following PR.