hid: Import hidmap and bunch of drivers based on it
hidmap is a kernel module that maps HID input usages to evdev events.
Following dependent drivers is included in the commit:
hms - HID mouse driver.
hcons - Consumer page AKA Multimedia keys driver.
hsctrl - System Controls page (Power/Sleep keys) driver.
ps4dshock - Sony DualShock 4 gamepad driver.
Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D27993