Adds option to tune the pairing of the sequences in obipairing and some stats to the results

Former-commit-id: a6cf9cb4d4ab20a433a2534fd7d11cd3ca8ebbaa

cmd/obitools/obitagpcr/main.go

@@ -47,6 +47,8 @@ func main() {
 		obipairing.CLIDelta(),
 		obipairing.CLIMinOverlap(),
 		obipairing.CLIMinIdentity(),
+		obipairing.CLIFastMode(),
+		obipairing.CLIFastRelativeScore(),
 		obipairing.CLIWithStats())
 
 	obiconvert.CLIWriteBioSequences(paired, true)