Separate package for cli and package sevm to prevent unintended subdependencies

[MbBrainz]

Currently when you install sevm in your package, itll add the ansi-colors, yargs and env-paths dependencies to your lock file. This is not intentional if you are only trying to use the package and not the cli. To reduce bundle size and keep the dependency tree clean, this should be separated.

[MbBrainz]

If Anyone sees this as well and wants to have a quick workaround:
If you use pnpm as a package manager, You can force pnpm to not install certain subdependencies by adding the following overrides to your root package.json:

{
"pnpm": {
   "overrides": {
      "...[other_overrides]",
      "sevm>ansi-colors": "-",
      "sevm>yargs": "-",
      "sevm>env-paths": "-"
   }
}}