Migration from Raster to terra packages

[Schuch666]

Most of the functions of EmissV imports from raster, the "next step" to a more stable and up-to date package is to replace raster to terra:

https://r-spatial.org/r/2022/04/12/evolution.html
and
https://r-spatial.org/r/2022/12/14/evolution2.html

[Schuch666]

The raster package are stable and functional https://github.com/rspatial/raster/blob/master/NEWS with minimal maintenance to work using libraries from terra package

[Schuch666]

All the raster dependencies in the package EmissV functions:

• gridInfo() -> read WRF-Chem grid information
• read() -> read emissions from netcdf inventory
• rasterSource() -> calculate grid emission
• areaSource() -> apply spatial proxy for emission
• lineSource() -> calculate line emissions
• pointSourve() -> calculate point emissinos
• emission() -> calculate emissions for the WRF-Chem model