Add new examples for xapi-cpp methods

[MPogotsky]

The goal of this task is to add more examples for the xapi-cpp methods, covering both request/response and streaming scenarios.

Please see the examples in this folder: examples
Each new example should be placed in its own file, and the corresponding CMake configuration should be updated. Comments should be added to explain any non-obvious code sections.

I believe the following API calls would benefit from having examples:

• XapiClientStream

  • getTickPrices()
  • getTrades()

• XapiClient

  • getChartLastRequest()
  • getChartRangeRequest()
  • getProfitCalculation()
  • getTickPrices()
  • getTradesHistory()

[MPogotsky]

Please note, you can always make more examples.

You can also can take one or two, but then please, write in the comment, what methods will you cover :)

[GalaxyHaze]

Hello, im Haze and i would like to help with your issue

[MPogotsky]

Hello Haze,
Great to hear from you and thanks for for your interest)
You can reffer to this guidance on how to submit pull request with your changes)

https://ploomber.io/blog/open-source/

When creating new PR, please, set as a target main branch.

Also, can you please clarify, are you willing add examples for the full set of methods? Or only couple of them?