[WIP] Laser Injection

[EyaDammak]

• new beam parameter:
  <plasma name>.can_laser_injection
<plasma name>.injection_product
• new function in PlasmaParticleContainer.cpp: PlasmaToBeam that transfers the plasma ionized electrons in the beam particle container.
• DONE: creation of the function PlasmaToBeam in the PlasmaParticleContainer, function defined in the source code, method defined in hipace.cpp as DoLaserInjection
• TO DO: for loop on the ionised electrons in the plasma particle container to transfer them in an empty beam container and test it.

How the input script would look like:

plasmas.names = elec ion
[...]

beams.names = beam1

beam1.injection_type = fixed_weight
beam1.num_particles = 0
beam1.total_charge = 0
beam1.position_mean = 0 0 0
beam1.position_std  = 0 0 0
beam1.u_mean  = 0 0 0
beam1.u_std = 0 0 0

elec.injection_product = beam1