Feat(Search): Added cancellation policies in search call.
Also added a control where the hotel code has to be numeric (as the provider specifies)
Sellers at 2023-01-09:
- Avra Tours - [AVR]
- CyberLogic - [CYL]
- Welcome Holidays (Mega Travel Selections) - [MGTS]
- Filos Holidays and Travel - [FHT]
- Kalamaki Travel - [KALT]
- Le Grand Tourism Enterprise - [LGTE]
- Holiday Moments - [HLDM]
- El Greco Tours - [EGT]
- Master Group Tour Operator - [MTT]
- KCG Travel SMPC - [KCG]