Add debug information in the fof init routine

Test Read_ramses2 subroutine

Add sort after reading RAMSES files for all the combinations of particles properties

Add several heapsort routines with new combinations of input arrays
Change ordrer of routines in the module

Add some debug info
Remove some allocations: the allocation is done in the calling
subroutine

Read_ramses2 is used to test the input of the hydro quantities

Add do_skip_mass and its defalut value to Read_pfof_snap_parameters
Add default values for do_skip do_skip_star and do_skip_metal

The subroutine is fully written, but it has to be tested and
incorporated in a larger reading subroutine

Add a logical variable to ask the user wether he or she wants to read
and write masses of the particles (DM and stars) in the cube files

Remove implicit none from the suboutines and add it in the module header

Add a module which will contain a reading subroutine for Ramses part
files.
This routine takes the filename and pfof parameters as input and returns
arrays with the data from the file.

Add heapsort for the hydro case:
sort 3 additionnal real arrays, mass, birth date and metallicity

Add arrays to read and manipulate hydro variables
mass
birth_date
metallicity
for dark matter particles and for stars
Add variables to store stars number

Code alignment with atom beautify

Changes in
Upcase / downcase
Functions name
to respect the naming norm

Changes in
Upcase / downcase
Functions name
to respect the naming norm

Change function name to respect naming norm

The default value of star and metal was written in a wrong place.

Add to the pfof_snap parameters type definition
Add to the read function
Add to the mpi type definition

Upcase and some changes in functions name
Replace some "hard written" numerical constants by constant variables

Add missing stat option when allocating ntab in Hdf5_write_mpi_int4_2D

Add missing error handling when allocating cube_disp array

Upcase / downcase functions and variables name
Add error handling when allocating arrays

Error handling modification in case of wrong parameter code

Upcase / downcase fonctions and variables name

Naming convention modifications
Add a reduce to modfofpara to compute the total halonb

Add a type for particles: first step toward a complete change in the data structure, where the collection of arrays will be replaces by an array of particles