Add geographical coordinates to network for NAD drawing and use GeographicalLayout

[souissimai]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)

What is the current behavior?
Substations' positions extensions are not filled and the NAD is draw with the ForceLayout algorithm.

What is the new behavior (if this is a feature change)?
If substations' positions are not filled in the network, we retrieve the positions from the geo-data-server and we add them as extensions of the substations of the network.
We use the GeographicalLayout to draw the NAD.

[sonarcloud]

Quality Gate failed

Failed conditions
73.1% Coverage on New Code (required ≥ 80%)

See analysis details on SonarCloud

[EstherDarkish]

Suggested change

	//List of selected voltageLevels with depth
	VoltageLevelFilter vlFilter = VoltageLevelFilter.createVoltageLevelsDepthFilter(network, existingVLIds, depth);
	//get voltage levels' positions on depth+1 to be able to locate lines on depth
	//List of selected voltageLevels with depth N
	VoltageLevelFilter vlFilter = VoltageLevelFilter.createVoltageLevelsDepthFilter(network, existingVLIds, depth);
	//get voltage levels' positions on depth N+1 to be able to locate lines on depth N

[etiennehomer]

Code coverage is low on VoltageLevelFIlter class. We copied it temporarily from powsybl-diagram. It will be removed at next powsybl update. Ok to merge like this.