Changes
- [MISP lookup] The SHA1 values are now submitted in a single query;
- [MISP lookup] A new argument lets the user specify if the final output must
be returned as a list of PyMISP Objects instead of the plain json output;
- [MISP lookup] Added possibility to specify the return format (json, stix2, csv, etc.);
- [core] Errors are always displayed, even in non-verbose mode.