Remove KEGGREST dependency

[Aariq]

Closes #108 by accessing KEGG API directly with httr2 (already a dependency) for getting mol files.

[Aariq]

devtools::check() passes locally on my mac, so I think the failing test is OK to ignore

[KristinaRiemer]

I'm not sure if this is a standard thing to do or necessary, but is there a way to include a reference to the KEGGREST function being the original inspiration besides in NEWS.md?

[Aariq]

I'm not sure if this is a standard thing to do or necessary, but is there a way to include a reference to the KEGGREST function being the original inspiration besides in NEWS.md?

I'll include an @note in the documentation for get_mol_kegg() pointing users to KEGGREST if they need more

[KristinaRiemer]

I ran get_mol_kegg(c("C16181", "C00042"), dir = "temp_mols/") from the main and this PR to compare the resulting mol files and they were the same.

This returns two mol files still, each with a name that is the compound id, but they both have the mol files for both compounds in each. Is that the desired behavior @Aariq?

[Aariq]

I ran get_mol_kegg(c("C16181", "C00042"), dir = "temp_mols/") from the main and this PR to compare the resulting mol files and they were the same.

This returns two mol files still, each with a name that is the compound id, but they both have the mol files for both compounds in each. Is that the desired behavior @Aariq?

Nope! They should be split. I'll take a look. Thanks for the example.

[Aariq]

I ran get_mol_kegg(c("C16181", "C00042"), dir = "temp_mols/") from the main and this PR to compare the resulting mol files and they were the same.
This returns two mol files still, each with a name that is the compound id, but they both have the mol files for both compounds in each. Is that the desired behavior @Aariq?

Nope! They should be split. I'll take a look. Thanks for the example.

I had a glue::glue_collapse() in there for reasons I can't remember that was combining all the compounds into one. Added a test for this and it should be working now