* reviewer ts hooks may now return a promise, which are then waited upon with Promise.all
* this does not break old ts hooks, as Promise.all allows for non-Promises in its array
* by default load all the default tex-chtml packages, which additionally include:
* require: using \require{package-name} to load a package
* autoload: using a command from a different package automatically loads it
* configmacros: allows for definition of predefined macros
