Fix Detector to correctly handle multiple tag families

[nuntipat]

The detector accepts multiple tag families separated with a space. However, it's constructor only initialize one tag family even through the destructor correctly destroys every tag family specified. The new implementation uses a for loop to iterate through each tag family's name and raise exception when the invalid name is found.

[AleksandarPetrov]

@nuntipat that's a good catch! I will need to test it and will then merge it. Thank you!