This allows a script to create its own execution context so that it can
control when a coroutine is valid to play based on custom data.
Also adds a function which causes a coroutine to end in an error.
The previous API only allowed very limited access to the audio stream
system. These changes add full support for playing all types of audio
streams via a dedicated API.
The largest new feature is that it is now possible to include other
files into the RML by using the "include" tag. This is useful for making
markup files more modular.
Also added some more options for existing things (e.g. built-in detail
options).
This is a system for storing arbitrary data in the config file and then
easily retrieving it later on. This has full Lua support for exposing
the available options in a custom UI and changing the values of the
options. This ported some of the existing command line options over to
the new system which is opt-in for the moment by using a mod_table flag.
This adds a new AI goal which is equivalent to play-dead except that it "sticks". It doesn't clear the goal list
so it will continue playing dead until the goal is removed or another goal with a higher priority is added.