Add Passive and Disabled Contract count to siac renter

MERGE REQUEST

Overview

This MR extends siac renter to include the count of passive and disabled contracts.

Example for Visual Changes (ie Screenshot, asciinema)

Checklist

Review and complete the checklist to ensure that the MR is complete before assigned to an approver.

• All new methods or updated methods have clear docstrings
• Testing added or updated for new methods
• Any new packages are added to Makefile and .gitlab-ci.yml
• API documentation updated for API updates
• Module README.md updated for changes to workflow
• Issue added to Sia-UI repo for new supporting features
• Changelog File Created

Issues Closed