Advanced Json Examples (#112)

* adding basic json example

* finish BasicJsonExamplesTest

* fix test

* Remove Unnecessary usings

* start adding AdvancedJsonExamples

* add to Newtonsoft.Json csproj

* finish test

* last fixes

* Update ExamplesTests.cs

* Delete "Lab 4 - "

* Query and Search Basic Examples (#113)

* add Basic Query Operations Exampele

* fix error

* fix order error

* remove unused usings

* add sleep

* Query and Search Advanced Examples (#115)

* start working

* using StringBuilder

* Change to List<string>

* finish test

* using HashSet

* add sleep to failed search test

* comment problematic assert

* change to Assert.Equal

* Assert.Equal(expectedResSet, resSet);

* change vec 4 to 5 inorder to make result deterministic

* last fixes

Author: shacharPash