test(pointing): Add mock input device.
New mock input device to generate input events for tests.
test(split): Add peripheral input test.
Test event propagation from peripheral input devices.
fix(split): Proper scoping for local within switch.
Minor compile fix.
chore: Fix up test snapshots after logging changes.
Adjust the test snapshots after logging changes to the central.
fix(kscan): Don't fire last mock event twice.
Fix a bug where the kscan mock would raise the last mock event
twice before halting processing.
This allows for the device name to be set at runtime, possible uses for this include a custom display screen that lets you type it in using the keycode state event, future configuration in zmk studio, or altering it per profile as per #1169
Pete Johanson
ReFil