Feature: support new historical(download) providers

[Romazes]

Description

This Pull Request introduces several new features and improvements to our data downloader:

1. New (optional) parameter in lean data downloader: --data-downloader-brokerage

   • A new command has been added to the download parameters. This command is used when we utilize a generic historical provider of brokerages.

2. Historical Provider for Alpaca and TradeStation

   • Added support for Alpaca as a historical data provider.
   • Added support for TradeStation as a historical data provider.
   • This enhancement allows users to fetch historical data from these two popular brokerage services.

3. Default Market for Crypto SecurityType

   • A default market is now assigned when using the Crypto SecurityType.
   • This update simplifies the process of downloading historical data for cryptocurrency by automatically selecting a default market.

[Martin-Molinero]

Nice! Shared minor request in slack