added new stubs/fixtures and fixed response mappers

v1.2.3

added new stubs/fixtures and fixed response mappers

Updated crypto mappers and added test cases for restful api responses.

Updated crypto mappers and added test cases for restful api responses.

Fix for issue #14

-- Added response stub for historical trades.
-- And fixed the mapper issue.

Added missing endpoints

Added missing endpoints

Stock API (Last Trade for a Symbol v2) /v2/last/trade/{stocksTicker}
Stock API (Last Quote for a Symbol v2) /v2/last/nbbo/{stocksTicker}
Forex API (Snapshot - Ticker) /v2/snapshot/locale/global/markets/forex/tickers/{ticker}

v1.1.0 major updates to the code

I made major updates to the code and added tests with additional changes. Keeping the version respective to current version. The updated are still backwards compatible. Next release will be v2.0 with structural and good documentation.

• Improved coding style according to PSR standards.
• Separated test concerns.
• Removed phplint, since it is useless.
• Replaced CircleCI with github actions. The test will run against latest version of php.
• Updated README.md according to changes
• Removed composer autoloader from files that should not be included
• Fixed spelling mistakes
• Added deprications for initialized properties within constructors and moved them to their independent methods.
• Made API Key property accessor to private.
• Updated RestResource class to follow PSR-18
• Added setHttpClient method to allow developers to set different clients that follows PSR-18 RestResource.
• Added MocksHttp helper trait for mocking requests.