Most of device boards have blue PCBs, but there are some products with green PCBs. In these cases,
the green panels have very poor contrast, so the color needs to be changed dynamically. This commit
adds a mechanism to automatically change the color of the dashboard panels based on the new device
property "PCB_COLOR".
https://onedigi.atlassian.net/browse/DEL-8719
Signed-off-by: David Escalona <david.escalona@digi.com>
David Escalona