Removed Doxygen-generated folder 'latex' from tree

- Did 'html' earlier, got very confused
Rewrote VectorField and all related classes

- VectorField now inherits DIRECTLY from
blitz::Array<blitz::TinyVector<float, 3>, 3>
Merge branch 'vector-blitz-inherit' into oo-refactor
Finished Electrode class

- Wrote import method
- Also updated some documentation