[test][3p3c] Replace unnecessary dgf by input file

test/porousmediumflow/3p3c/implicit/grids/column.dgf

-DGF
-Interval
-0 0   % first corner
-0.1 1.20   % second corner
-1 120   % 22 cells in x and 12 in y direction
-#
-GridParameter
-overlap 0
-periodic
-closure green
-#GridParameter
-BOUNDARYDOMAIN
-default 1    % all boundaries have id 1
-#BOUNDARYDOMAIN
-# unitcube.dgf

test/porousmediumflow/3p3c/implicit/grids/kuev_3p3cni.dgf

-DGF
-Interval
-0 0      % first corner
-1.5 0.74 % second corner
-15 8     % cells in and y direction
-#
-GridParameter
-overlap 0
-periodic
-closure green
-#GridParameter
-BOUNDARYDOMAIN
-default 1    % all boundaries have id 1
-#BOUNDARYDOMAIN
-# unitcube.dgf

test/porousmediumflow/3p3c/implicit/grids/test_3p3c.dgf

-DGF
-Interval
-0 0    % first corner
-500 10 % second corner
-250 10 % cells in x and y direction
-#
-GridParameter
-overlap 0
-periodic
-closure green
-#GridParameter
-BOUNDARYDOMAIN
-default 1    % all boundaries have id 1
-#BOUNDARYDOMAIN
-# unitcube.dgf

test/porousmediumflow/3p3c/implicit/grids/test_3p3c_coarse.dgf

-DGF
-Interval
-0 0    % first corner
-500 10 % second corner
-40 4   % cells in x and y direction
-#
-GridParameter
-overlap 0
-periodic
-closure green
-#GridParameter
-BOUNDARYDOMAIN
-default 1    % all boundaries have id 1
-#BOUNDARYDOMAIN
-# unitcube.dgf

test/porousmediumflow/3p3c/implicit/test_box3p3c.input

@@ -3,7 +3,8 @@ DtInitial = 60 # [s]
 TEnd = 864000 # [s]
 
 [Grid]
-File = ./grids/test_3p3c.dgf
+UpperRight = 500 10
+Cells = 250 10
 
 [Problem]
 Name = infiltrationbox

test/porousmediumflow/3p3c/implicit/test_box3p3c_reference.input

@@ -3,7 +3,8 @@ DtInitial = 86400 # [s]
 TEnd = 864000 # [s]
 
 [Grid]
-File = ./grids/test_3p3c_coarse.dgf
+UpperRight = 500 10
+Cells = 40 4
 
 [Problem]
 Name = box3p3c

test/porousmediumflow/3p3c/implicit/test_box3p3cnicolumnxylol.input

@@ -3,7 +3,8 @@ DtInitial = 1 # [s]
 TEnd = 200 # [s]
 
 [Grid]
-File = ./grids/column.dgf
+UpperRight = 0.1 1.20
+Cells = 1 120
 
 [Problem]
 Name = columnxylolbox # name passed to the output routines
@@ -12,4 +13,4 @@ Name = columnxylolbox # name passed to the output routines
 NumericDifferenceMethod = 0 # -1 backward differences, 0: central differences, +1: forward differences
 
 [TimeManager]
-MaxTimeStepSize= 4. # Set the maximum time step
+MaxTimeStepSize= 4.0 # Set the maximum time step

test/porousmediumflow/3p3c/implicit/test_box3p3cnikuevette.input

@@ -5,7 +5,8 @@ MaxTimeStepSize = 60 # [s]
 EpisodeLength = 1000 # [s]
 
 [Grid]
-File = ./grids/kuev_3p3cni.dgf
+UpperRight = 1.5 0.74
+Cells = 15 8
 
 [Problem]
 Name = kuevettebox # name passed to the output routines

test/porousmediumflow/3p3c/implicit/test_cc3p3c.input

@@ -3,7 +3,8 @@ DtInitial = 60 # [s]
 TEnd = 864000 # [s]
 
 [Grid]
-File = ./grids/test_3p3c.dgf
+UpperRight = 500 10
+Cells = 250 10
 
 [Problem]
 Name = infiltrationcc

test/porousmediumflow/3p3c/implicit/test_cc3p3c_reference.input

@@ -3,7 +3,8 @@ DtInitial = 86400 # [s]
 TEnd = 864000 # [s]
 
 [Grid]
-File = ./grids/test_3p3c_coarse.dgf
+UpperRight = 500 10
+Cells = 40 4
 
 [Problem]
 Name = cc3p3c

test/porousmediumflow/3p3c/implicit/test_cc3p3cnicolumnxylol.input

@@ -3,7 +3,8 @@ DtInitial = 1 # [s]
 TEnd = 200 # [s]
 
 [Grid]
-File = ./grids/column.dgf
+UpperRight = 0.1 1.20
+Cells = 1 120
 
 [Problem]
 Name = columnxylolcc # name passed to the output routines

test/porousmediumflow/3p3c/implicit/test_cc3p3cnikuevette.input

@@ -5,7 +5,8 @@ MaxTimeStepSize = 60 # [s]
 EpisodeLength = 1000 # [s]
 
 [Grid]
-File = ./grids/kuev_3p3cni.dgf
+UpperRight = 1.5 0.74
+Cells = 15 8
 
 [Problem]
 Name = kuevettecc # name passed to the output routines