* feat: add processors api
* fix: make processor work properly, implement in exec code
* feat: add names to processors, allow skipping based on name
* feat: add opt to skip processors
* feat: allow processors to set if history should be saved
* refactor: put file history handler in line reader instance instead of global
* feat: add lua history handler in go
* feat: use lua to retrieve readline history
* refactor: handle history in lua
this also introduces a new opt: history
if it is false, command history won't get added
* fix: remove nature.history require
* docs: add changes in changelog
* fix: add comma after history opt
this adds `hilbish.opts`, a table to set
simple options akin to shopt or setopt on
other shells. this commit specifically also
includes the autocd opt, which functions the
way you expect it to
to set opts, simply do `hilbish.opts.name = val`,
where `name` is the opt you want to set and `val`
being the opt setting.
ie: `hilbish.opts.autocd = true` to turn on autocd
