pixela(https://pixe.la) client for swift
- user
- create-user
- update-user
- delete-user
- graph
- create-graph
- get-graphs
- get-graph-svg
- update-graph
- delete-graph
- view graph-detail
- get graph-pixels-lis
- pixel
- post-pixel
- get-pixel
- update-pixel
- increment-pixel
- decrement-pixel
- delete-pixel
- webhook
- create-webhook
- get-webhooks
- invoke-webhook
- delete-webhook