fix: Renamed tests (2)

Missed to correct some errors in the last commit.

Signed-off-by: Sebastian Niemann <niemann@sra.uni-hannover.de>
test: Fixed source code and added new tests

This commit has become quite large ...

fix:
- Fixed: Moved Coveralls from the Maven release profile to the general excecution section

test:
- Added Span::all to ElemIndRange
- Fixed #78
- Fixed #80
- Removed unnecessary results files, for Col.insert_rows and Row.insert_cols
- Corrected type for Col.shed_rows and Row.shed_cols

Signed-off-by: Sebastian Niemann