Test of examples

As all pushers and geometries have change, I'm testing all examples,
   adding a README.txt and a reference output for each case.

runs/cylFlow/README.txt

@@ -0,0 +1,7 @@
+Neutral flow around a cylinder with elastic collisions.
+
+Case with the same mesh for particle weighting and collisions and another case using the dual mesh mode, with a more refined mesh around the cylinder.
+This demostrates the capacity of fpakc to work with independent meshes for particles and collisions.
+
+CPU time is outputed.
+Gnuplot scripts for plotting the CPU time are provided.

runs/cylFlow/input.json

@@ -43,9 +43,8 @@
   },
   "solver": {
     "tau":  [5.0e-7],
-    "finalTime":  1.0e-3,
+    "finalTime":  5.0e-4,
     "pusher": ["Neutral"],
-    "WeightingScheme": "Volume"
   },
   "interactions": {
     "folderCollisions": "./data/collisions/",

runs/cylFlow/inputDualMesh.json

@@ -44,7 +44,7 @@
   },
   "solver": {
     "tau":  [5.0e-7],
-    "finalTime":  1.0e-3,
+    "finalTime":  5.0e-4,
     "pusher": ["Neutral"],
     "WeightingScheme": "Volume"
   },