Add timescaledb-toolkit

[StutteLars]

Issue: #1507

Checklist:

• Have you added an explanation of what your changes do and why you'd like them to be included?
• Have you updated or added documentation for the change, as applicable? Not applicable
• Have you tested your changes on all related environments with successful results, as applicable?

Type of Changes:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

What is the current behavior? (link to any open issues here)
Currently the timescaledb_toolkit extension is not installed:
Issue

What is the new behavior (if this is a feature change)?
Timescaledb_toolkit extension is installed.

Other information:
Used timescale docs