Build velia daemon

Introduce package for velia, configure build and systemd services.
Removes czechlight LEDs boot service.

Change-Id: I84d724918a3a6c7654eb113abce4d7068d7770a6
Co-authored-by: Jan Kundrát <kundrat@cesnet.cz>
diff --git a/package/Config.in b/package/Config.in
index e0491d7..13a2666 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -4,4 +4,5 @@
 source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/czechlight-rauc/Config.in"
 source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/czechlight-separate-boot/Config.in"
 source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/gammarus/Config.in"
+source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/velia/Config.in"
 source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/grub2-tools/Config.in"