Feature/add material temperature and leading zero

[MahindraPersaud]

Quick PR to allow you to have the material temperature added into a job name as well as a change that allows the layer_height to be 0.X instead of 0X

@fieldOfView

for example: {print_time_hours}h{print_time_minutes}m_{layer_height}mm_{material_temperature}C_{material_name_full}_{printer_name} outputs ModulR_Twin_Duct_6h12m_0.1mm_250C_Generic_ABS_CE3S1PRO.gcode

[geekykayaker-anon]

@fieldOfView I realise this hasn't been updated in a couple of years, but is there any chance we could get this in?