PIConGPU simulation setup for L|PWFA simulation

The input set of the L|PWFA simulation as used in the publication "Demonstration of a compact plasma wakefield accelerator powered by laser-accelerated electron beams"...L|PWFA（激光等离子体尾场加速器，Laser-Plasma Wakefield Accelerator）模拟的输入数据集，该数据集被应用于题为《激光加速电子束驱动的紧凑型等离子体尾场加速器演示》（"Demonstration of a compact plasma wakefield accelerator powered by laser-accelerated electron beams"）的学术出版物中……