Various Search Toolkits

[EricGustin]

1. Add the following tools:

• Google Finance
  • get_stock_summary
  • get_stock_chart_data
• Google Flights
  • search_roundtrip_flights
  • search_one_way_flights
• Google Hotels
  • search_hotels

2. Add some common helper functions for serpAPI tools.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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[EricGustin]

Since Arcade enum values must be of type string , and also since the enum's values are sent to the LLM, then we need to define LLM readable values. Once the LLM provides the value, we need to convert it to what the SerpAPI endpoint understands, which is an integer.