Change toml lib + fix macro bug on devel

[HugoGranstrom]

• Fixes the orc bug on Adding devel to CI, fix #161, fix #149 #169
• Changes the toml parsing library to parsetoml which should make nimib run on orc finally. I had to do some workarounds though, like making my own customToJson proc to get the correct JSON for std / json to be able to parse it correctly into a NbConfig.

[pietroppeter]

Looks great, thanks! And loadTomlSection will be used by nimibook (see https://github.com/pietroppeter/nimibook/blob/main/src/nimibook/configs.nim, I will make the changes).

It is all here right? Does this work with devel now? We can merge this and then rebase the CI Pr on the new master, correct?

[HugoGranstrom]

I found one bug that the stdlib doesn't like missing fields, so I opted for using jsony instead for the deserialization. But now it should be ready to go if the CI is green. I have tried it locally with devel and the configuration is loaded without any error. So we can merge this and see if the CI PR works with it :)

[pietroppeter]

good yeah, I imagined jsony would be a better fit being a loose parser. looks good, merging and rebasing CI since I am curious to see it green (then I will also add a changelog for this)