add service that runs a script at first boot to format and mount the second HDD
add service that runs a script at first boot to format and mount the second HDD

Summary:
The service runs a script that partitions, formats and mounts the second HDD and
adds it to /etc/fstab for automount

	new file:   ../meta-tplino/recipes-core/firstboot/files/firstboot.service
	new file:   ../meta-tplino/recipes-core/firstboot/files/firstboot.sh
	new file:   ../meta-tplino/recipes-core/firstboot/firstboot.bb

Test Plan:
build image with package firstboot
deploy image
run image
check /etc/fstab, df etc. if script ran

Reviewers: hsychla, wfailla, tbreddin

Reviewed By: wfailla

CC: aschultz, vtarasen, druss

Differential Revision: https://REVIEWSERVER/D369

carosio/meta-caros,GalaxyGorilla/meta-caros,umatomba/meta-caros,thz/meta-caros,GalaxyGorilla/meta-caros,RoadRunnr/meta-caros,thz/meta-caros,wfailla/meta-caros,GalaxyGorilla/meta-caros,hsychla/meta-caros,tlnd/meta-caros,hsychla/meta-caros,ContentSafe/meta-caros,hsychla/meta-caros,carosio/meta-caros,GalaxyGorilla/meta-caros,tlnd/meta-caros,umatomba/meta-caros,umatomba/meta-caros,tlnd/meta-caros,thz/meta-caros,ContentSafe/meta-caros,carosio/meta-caros,ContentSafe/meta-caros,pokymobo/meta-caros,umatomba/meta-caros,tlnd/meta-caros,ContentSafe/meta-caros,thz/meta-caros,pokymobo/meta-caros,thz/meta-caros,GalaxyGorilla/meta-caros,wfailla/meta-caros,pokymobo/meta-caros,RoadRunnr/meta-caros,hsychla/meta-caros,wfailla/meta-caros,umatomba/meta-caros,wfailla/meta-caros,pokymobo/meta-caros,tlnd/meta-caros,hsychla/meta-caros,ContentSafe/meta-caros,carosio/meta-caros,pokymobo/meta-caros,ContentSafe/meta-caros,RoadRunnr/meta-caros,pokymobo/meta-caros,RoadRunnr/meta-caros,wfailla/meta-caros,RoadRunnr/meta-caros,carosio/meta-caros