Built-in snippets

• CDC-ACM Console Snippet (cdc-acm-console)
• Nordic FLPR snippet with execution in place (nordic-flpr-xip)
• Nordic FLPR snippet with execution from SRAM (nordic-flpr)
• Nordic boot PPR snippet with execution in place (nordic-ppr-xip)
• Nordic PPR snippet (nordic-ppr)
• NUS Console Snippet (nus-console)
• RTT Console Snippet (rtt-console)
• Xen Dom0: universal snippet for XEN control domain