Set up "Epiverse-TRACE Carpentry"

[Bisaloo]

So that we can limit the differences between this fork and upstream and improve the handling of git conflicts. See carpentries/sandpaper#585 for background:

• Set carpentry setting to epiverse-trace git-rstudio-basics#72
• Set carpentry to epiverse-trace research-compendium#42
• Set carpentry setting to epiverse-trace tutorials#150
• Set carpentry setting to epiverse-trace tutorials-middle#127
• Set carpentry setting to epiverse-trace tutorials-late#53
• Set carpentry setting to epiverse-trace tutorials-early#150

We can then revert part of bb04b83 (#7).

[Bisaloo]

This is done now. We no longer have to modify the head.html template to set a custom logo.