RLA 0.1.6.9001

# RLA 0.1.6.9001

- modify `vital_param_args()` into vital_param_pbr() for **PBR** and add `vital_param_rla()` for **RLA** and **PBR_nouveau**
- all test modified and run correctly, examples of all function adapted
* In `pellatomlinson_pbr()` convert `vital_param` into a function to ease its use
* `pellatomlinson_pbr()` add `vital_parm` that gather MNPL, Rmax, K and z
* vignettes old update (vignettes need to be simplified to run)

RLA 0.1.6.9000

# RLA 0.1.6.9000

* `citation("RLA")`updated with RLA paper in Frontiers