refactor analysis serializer to not inherit from run, bug in drf=3.7.4
refactor analysis serializer to not inherit from run, bug in drf=3.7.4

EBI-Metagenomics/emgapi,EBI-Metagenomics/emgapi,EBI-Metagenomics/emgapi,EBI-Metagenomics/emgapi,EBI-Metagenomics/emgapi