Bind all class methods using the keyword "this"

[alfredomariamilano]

This pull request binds all class methods using the this keyword, so that don't break in certain circumstances, like calling methods dynamically (i.e. using the get function from lodash).

Also, I don't want to break your workflow and it's beyond the scope of this pull request, but having @nut-tree/nl-matcher as a dependency breaks pnpm install if one doesn't have access to it, so a contributor would need to uninstall it first from the examples workspace. Something to keep in mind.