Please check if the PR fulfills these requirements
[x] The commit message follows our guidelines
[x] Tests for the changes have been added (for bug fixes / features)
[x] Docs have been added / updated (for bug fixes / features)
What kind of change does this PR introduce?
Allows Angle and Voltage CNECs' terminals to be busbar sections and change import parameter to overcome an import bug for these CNECs.
Please check if the PR fulfills these requirements
What kind of change does this PR introduce? Allows Angle and Voltage CNECs' terminals to be busbar sections and change import parameter to overcome an import bug for these CNECs.