Cloning Components in PowerElectronics Module

[abdourahmanbarry]

Description

This pull request implements clone functionality for components in the PowerElectronics module. This gives us the ability to create independent copies of components such that modifications to one do not affect the other.

Proposed changes

Each component implements the isCloneable and clone methods. The isCloneable method returns true if the component is cloneable and false otherwise. The clone method returns a pointer to a new object with the same state as the component from which it was cloned. After cloning a component, the user should set the data pointers for the clone.

Checklist

• All tests pass.
• Code compiles cleanly with flags -Wall -Wpedantic -Wconversion -Wextra.
• The new code follows GridKit™ style guidelines.
• There are unit tests for the new code.
• The new code is documented.
• The feature branch is rebased with respect to the target branch.
• The CHANGELOG.md has been updated to reflect the changes. If this is a minor PR that is part of a larger fix already included in the file, state so.

Further Comments

This functionality is useful for the partitioning implementation.