remove slepc/ prefix in #include

- fixes compilation error on Euler

cppslepc/src/include/ae108/cppslepc/LinearEigenvalueProblemSolver.h

@@ -21,7 +21,7 @@
 #include "ae108/cpppetsc/Vector.h"
 #include "ae108/cppslepc/EigenPair.h"
 #include "ae108/cppslepc/EigenvalueProblemSolverDivergedException.h"
-#include <slepc/slepceps.h>
+#include <slepceps.h>
 
 namespace ae108 {
 namespace cppslepc {
@@ -245,4 +245,4 @@ EPS LinearEigenvalueProblemSolver<Policy>::data() const {
 }
 
 } // namespace cppslepc
-} // namespace ae108
\ No newline at end of file
+} // namespace ae108