#3 Some Fixes and Features

[Romazes]

Description

Feature

1. Added [Explicit] attribute in tests, because we need setup config. TDA doesn't have public endpoint.
2. Created independent file to test HistoryProvider brokerage.
3. Cleared code in main brokerage test file (TDAmeritradeBrokerageTests.cs).
4. Lock object in PlaceOrder to sync threads.

   Fix

5. Price fildes for MarketStop and StopLimit orderType.
6. assing response in Execute method
7. Update order: After we updated order in Lean then we have removed order from cached collection.
8. CancelOrder() method
9. GetOpenOrders(). Also, open orders add to inner cache collection to get response from websocket

Related Issue

N/A

Motivation and Context

TDA implementation.

Requires Documentation Change

N/A

How Has This Been Tested?

Run test locally use your config.

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [x] Refactor (non-breaking change which improves implementation)
• [ ] Performance (non-breaking change which improves performance. Please add associated performance test and results)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Non-functional change (xml comments/documentation/etc)

Checklist:

• [x] My code follows the code style of this project.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.
• [x] My branch follows the naming convention bug-<issue#>-<description> or feature-<issue#>-<description>