rm the dependency of Rasters.jl

[kongdd]

Hi @rafaqz, Just let you know that the dependency of Rasters.jl has been removed from Terra.jl.

[kongdd]

The simplest Cartesian coordinate system, WGS84 projection, meets all my needs. Rasters.jl and GeoArrays.jl are too heavy for me.

Every research project I undertake relies on geoprocessing functions. If my package is not published, using it requires including a long Manifest.toml file in the repository, which is cumbersome.

This is why I persist in developing my own package. I need a package to hold my personal geoprocessing functions and keep my repository clean.

It is just for my personal use, not robbing your reputation.