* adding core_input_actions

action based input API vs direct input, allows remapping of buttons or keys to an action.

* adjusted formatting.

* updates for struct name

and fixed a typo

The example is not following examples conventions and it will be moved to `others` with a new name

This example was POSIX only and had some special requirements for web, it made it more difficult to be managed from collection standard examples format.

It will be re-added in the `others` category, that is not processed for web.

The veritable screenshot is this

There are no screenshot for this and the alt is seen