Implementation of 0D grid for analysis of collisional operators.

Still need to add a 0D pusher and the corresponding input configuration
and documentation.

src/modules/mesh/inout/gmsh2/moduleMeshOutputGmsh2.f90

@@ -96,8 +96,8 @@ MODULE moduleMeshOutputGmsh2
       IMPLICIT NONE
 
       CLASS(meshGeneric), INTENT(in):: self
-      INTEGER:: numEdges
       INTEGER, INTENT(in):: t
+      INTEGER:: numEdges
       INTEGER:: n
       REAL(8):: time
       CHARACTER(:), ALLOCATABLE:: fileName