Add dependencies as additional donations option for OpenClimate.fund.

As discussed yesterday in the OST meeting we can add the OST dependencies that are unique in this space. This information can also be used for our next publication.

Most of the data is already been available here based on issue #87 : https://ost.ecosyste.ms/projects/dependencies

Andrew suggested that we remove the top 1% or 2% of projects dependencies on each package manager, so that we get the unique dependencies for OST based on programming language and category.

Start by reviewing the dependency data described in issue #87 and the existing results at https://ost.ecosyste.ms/projects/dependencies. Determine where donation options are assembled and how package managers, languages, and categories are represented. Done means dependencies unique to OST remain after excluding the top 1% or 2% of projects for each package manager and can support the next publication.

Written by the indexing model from the issue text.