Update sb1

[amandaha8]

• The SB1 link I used in winter 2023 was down, so I experimented with reading the data from a few other Arc GIS servers.
• I noticed there were rows that shared the same projectid, name, description and status. The goal of the project list is to have the least amount of duplication as possible. Keeping in mind a project might have more than one row due to being in different locations, I experimented with forward filling rows that shared the same values in the 4 columns above and keeping the row that ended up having the most info, determined by counting the nans.
• I also separated out the table based on the schema listed in ddp, but this will actually be done at a later step since not all the projects in Sb1 have a unique id identifier (many projects have none in the projectid column) and it will be too difficult to map the projects back to the main project table without a unique identifier.

[github-actions]

nbviewer URLs for impacted notebooks:

• gtfs_quality_check/gtfs_checking.ipynb
• project_list/add_sb1.ipynb