Correcting a bug giving rise to an access violation in subroutine Change_exp_img: removing the call to Get_Info_Current_Image()

Introducing a default incident spectrum for X-rays (Kramers' formula) for calculating theoretical images using X-rays.

Changes in Esmeralda to calculate a Series of Calculated Images in one click. Now it has been tested and seems to work properly.

Adding the necessary changes to take into account the sense of the spindle angle if something goes wrong in the experiment with the rotation of the cryostat stick. Adding the keyword and value "Spindle_Sense   -1", means that the nominal spindle angle is counter-clockwise when seen from the top of the z-axis.

Modifications in cyclops2cyl.f90 and Data_Trt.f90. Now it seems that alpha corrections work properly.

Modifications in 2 modules: RnW_2D_Images.f90 and hbin_module.f90 and cyclops2cyl.f90 to introduce averaging independently of the name of the files and the new instruction SCAN in the buffer file for Cyc2Cyl. Now we can use the instruction "IMAGES Average n" to average each n images read in the buffer file. The instruction "SCAN init_spindle step_spindle"

Changes in the installer, compilation script for Windows and modification of RnW_2D_Images.f90 for reading TIF files from Nomad when the angle_omega item is replaced by angle_canne.

Fix few issues for gfortran compilation

See merge request !2

Changing non-standard Fortran syntax introduced by A. Filhol that is not accepted by GFortran. Correcting small things and updating the script for compilation of Esmeralda with GFortran. Esmeralda built with GFortran has been tested and everything seems to work correctly.

Fix minor incompatibilities of the code with gfortran
Only tested on MacOS X

Removing non-needed "implicit none"! To the users of the library: when a function or a subroutine is within a module, the global "implicit none" declared at the beginning of the module propagates to all procedures within its scope.
Redundant "return" statements before the end of a subroutine/function have been removed.
Change line terminators from Windows to Unix ...

Build set up ci

See merge request !1