First implementation of 1D radial case. Only charged particles taked

into account (as in 1D Cartesian case).

The 1D Cathode example case has been modified, having now 2 input files:
  - inputCart.json: Used for Cartesian coordinates
  - inputRad.json:  Used for Radial coordinates

Pusher is a Boris pusher but without z direction.

src/modules/mesh/1DCart/moduleMesh1DCartBoundary.f90

@@ -0,0 +1,40 @@
+MODULE moduleMesh1DCartBoundary
+  USE moduleMesh1DCart
+
+  TYPE, PUBLIC, EXTENDS(meshEdge1DCart):: meshEdge1DCartRef
+    CONTAINS
+      PROCEDURE, PASS:: fBoundary => reflection
+
+  END TYPE meshEdge1DCartRef
+
+  TYPE, PUBLIC, EXTENDS(meshEdge1DCart):: meshEdge1DCartAbs
+    CONTAINS
+      PROCEDURE, PASS:: fBoundary => absorption
+
+  END TYPE meshEdge1DCartAbs
+
+  CONTAINS
+    SUBROUTINE reflection(self, part)
+      USE moduleSpecies
+      IMPLICIT NONE
+
+      CLASS(meshEdge1DCartRef), INTENT(inout):: self
+      CLASS(particle), INTENT(inout):: part
+
+      part%v(1) = -part%v(1)
+      part%r(1) =  2.D0*self%x - part%r(1)
+
+    END SUBROUTINE reflection
+
+    SUBROUTINE absorption(self, part)
+      USE moduleSpecies
+      IMPLICIT NONE
+
+      CLASS(meshEdge1DCartAbs), INTENT(inout):: self
+      CLASS(particle), INTENT(inout):: part
+
+      part%n_in = .FALSE.
+
+    END SUBROUTINE absorption
+
+END MODULE moduleMesh1DCartBoundary