[WIP] Add scale method to compas.geometry.Cone

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>compas.geometry.Cone has no implementation of scale</issue_title>
<issue_description>compas.geometry.Cone has no implementation of scale and its base class Shape raises a NotImplementedError...

scaling a cone means scaling the cone radius and height by the same factor.

</issue_description>

<agent_instructions>* add the missing Cone.scale that applies a scale factor to the cone's radius and height

• add tests for the method
• document the method</agent_instructions>

Comments on the Issue (you are @copilot in this section)

Fixes #1491

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