Expose tolerance param CU-86c3mbjx8

[big-nacho]

Description:

This PR exposes a tolerance parameter for vectorizing requests. Lower tolerances means higher resolution SVG's are created. The default is set to 0.2 which is what we had before. To test, you can make normal requests, just add the "tolerance" parameter to the body with something other than 0.2.

Checklist (based on PR guidelines):

• I have self-reviewed this PR, according to these points
• This PR falls into maximum three of these categories
• I feel comfortable taking responsibility for merging this code to production
• The code is high quality, well-tested, follows styles guides (Frontend), clean, and well documented

[claas-c]

Lgtm