added automatic keyword assignment support to test macro (#38270)
* added automatic keyword assignment support to @test macro
* added some tests for test macro using atol keyword
* x = a.x syntax support added
* Update stdlib/Test/src/Test.jl
Co-authored-by: Simeon Schaub <simeondavidschaub99@gmail.com>
Co-authored-by: Simeon Schaub <simeondavidschaub99@gmail.com>
