统一关于voltage的配置 & 修正差分法计算电场

See merge request !35

整理辐照仿真相关代码，保证ITk-Si-strip正常仿真

See merge request !34

get_e_field归并公共逻辑

See merge request !33

恢复加权场计算、电场计算、信号产生功能

See merge request !32

half of gen_signal

See merge request !31

Weighting Potential by Devsim

See merge request !19

更改json路径及模拟10个电子撞击束流管

See merge request !30

	deleted:    cflm/RootPlot_2D.py
	modified:   cflm/__init__.py
	deleted:    cflm/cflm.json
	modified:   current/cal_current.py
	modified:   current/cal_current_diffuse.py
	modified:   current/model.py
	modified:   gen_signal/__init__.py
	modified:   gen_signal/draw_save.py
	modified:   gen_signal/gen_signal_main.py
	deleted:    particle/cflm.py
	deleted:    particle/g4si_itk.py
	deleted:    particle/g4simulation.py
	modified:   spaceres/telescope_signal.py
	modified:   tct/tct_signal.py

 Conflicts:
	__main__.py
	cflm/cflm.py

gen_signal批量仿真，cflm bug fix，taichu bug fix，geant4拆解，drawsave.draw_plots拆解

See merge request !28