Component schemas, missing endpoint and various fixes for Broker API spec

[manul7]

Added new components schemas declaration for:

• OathClientStatus
• AssetStatus
• BankAccountType
• AchStatus
• BankCodeType

Added missing endpoint for /v1/trading/accounts/{account_id}/orders:by_client_order_id

Added missing items for multiple enums and Contact component and fixed incorrect numbers declaration.

QA

• Linter passes without issues and new warnings.
• Validation passes without issues:

$ npm run validate broker/openapi.yaml 

> alpaca-oas@0.0.1 validate
> swagger-cli validate

broker/openapi.yaml is valid

[manul7]

@drew887 could you please take a look?

[drew887]

@manul7 Sorry I no longer work for Alpaca, @haxdds or @gsmadi are the main points of contact now I believe