repo restructure

[schatzistogias]

created research_data folder moved all CSVs to indicators folder removed combined_malicious_indicators.csv removed source column from the csv files

• infobloxopen/threat-intelligence/indicators/csv/prolific_puma_20231031.csv
• infobloxopen/threat-intelligence/indicators/csv/decoy_dog_cta_20230420_iocs.csv
• infobloxopen/threat-intelligence/indicators/csv/suspicious_dga_cta_20230823.csv
• infobloxopen/threat-intelligence/indicators/csv/vextrio_cta_20240123_iocs.csv
• infobloxopen/threat-intelligence/indicators/csv/open_tangle_cta_20231012_iocs.csv
• infobloxopen/threat-intelligence/indicators/csv/cryptdesignbot_cta_20230518_iocs.csv
• infobloxopen/threat-intelligence/indicators/csv/usps_cta_20231219.csv
• infobloxopen/threat-intelligence/indicators/csv/lookalikes_malicious_rmm_ccb_20230131_iocs.csv