Pedestrian option adjustments

[kdiluca]

Issue

What issue is this PR targeting? If there is no issue that addresses the problem, please open a corresponding issue and link it here.

Tasklist

• Add tests
• Review - you must request approval to merge any PR to master
• Add #fixes with the issue number that this PR addresses
• Generally use squash merge to rebase and clean comments before merging
• Update the changelog
• Update relevant documentation

Requirements / Relations

Link any requirements here. Other pull requests this PR is based on?

[kdiluca]

I'd like to be able to merge this to master so that @dgearhart can do some RAD testing. Also, it's been awhile since we've tagged a release so we'll need to update the change log for this as well.

[kdiluca]

Pedestrian Diffs: (pedestrian_routes.txt)
Valhalla With sidewalk adjustment, no walkway_factor:
#87


vs.
Valhalla With sidewalk adjustment, walkway_factor=1.5:
#88

Valhalla With sidewalk adjustment, no walkway_factor:
#90


vs.
Valhalla With sidewalk adjustment, walkway_factor=1.5:
#91