"realisation" sprite name instead of "realization"

[dseverov]

relation name standart spelling is realization in macro name is Rel_Realization too

but sprite name is realisation

Sprite name seems need to be standart too. Is not it?

[Ben Peachey]

The sprite name comes from the main PlantUML repo (see https://github.com/plantuml/plantuml/blob/master/src/sprites/archimate/realisation.png). If things are to be resolved, the sprite in the main repo would need be renamed.

Closing this issue, as we cannot fix it here.