Make lazynpm package manager agnostic (pnpm, yarn support)

**Is your feature request related to a problem? Please describe.**
I don't use NPM; I mainly use PNPM and yarn

**Describe the solution you'd like**
- It should be able to detect automatically which package manager the project is using
- I should be able to set a package manager explicitly via the env variable. i.e
`NODE_PKG_MANAGER=yarn lazynpm` or via argument i.e `lazynpm --package-manager yarn`

**Describe alternatives you've considered**
None

**Additional context**
None