luna-webkit-api: Add .bbappend

* Added variables for DPI scaling

Signed-Off-By: Josh Palmer <jpalmerwatkins@me.com>
luna-sysmgr: Bump SRCREV

* Pass DPI scaling variables into IMEDataInterface for VKB scaling

Signed-Off-By: Josh Palmer <jpalmerwatkins@me.com>
keyboard-efigs: Bump SRCREV

* Implement DPI Scaling

Signed-Off-By: Josh Palmer <jpalmerwatkins@me.com>