Calculation of Euclidean distance in LSCorridors

[bniebuhr]

[BUG Report] Reported by @felipemartello

For each corridor generated inside LSCorridors, the Euclidean distance between Source (S) and Target (T) points is calculated. However, instead of calculating the distance between actual S and T locations, which may vary from one simulation to another (depending on the size of the S and T patches), the algorithm is only calculating the Euclidean distance between the centroids of S and T patches.