Rename grindrock to weathering

[katarkow]

Purpose of this PR

Renaming of technology rockgrind to weathering and updating the data revision version to the data with the renamed technology mrremind PR#407.

Type of change

• Refactoring
• Minor change (default scenarios show only small differences)

Checklist:

• My code follows the coding etiquette
• I performed a self-review of my own code
• I explained my changes within the PR, particularly in hard-to-understand areas
• I checked that the in-code documentation is up-to-date

[amerfort]

Thanks for doing that! Looks good to me.

[amerfort]

"Weathering" refers to the full chain of the technology, i.e. not only grinding but also transportation and spreading of basalt, right? In the refactored CDR module and in our documentation we should be more explicit than just "grinding rock for enhanced weathering". But not necessary to change it now imo.