Preparing the scenario for multiple example tables

[olegpidsadnyi]

Cucumber has added multiple example tables to the scenarios. These examples can also get tags.
We need to support pytest marks for those examples.
The parser is going to add multiple example tables to the TemplatedScenario. The tags can become part of the Examples object.
Since each test item is produced by the parametrization represented by a single table row we have to pass the marks parameter to each of them.

[codecov]

Codecov Report

Merging #489 (d52dea9) into master (f4ed62d) will decrease coverage by 0.09%.
The diff coverage is 88.23%.

@@            Coverage Diff             @@
##           master     #489      +/-   ##
==========================================
- Coverage   95.91%   95.82%   -0.10%     
==========================================
  Files          49       49              
  Lines        1640     1651      +11     
  Branches      179      181       +2     
==========================================
+ Hits         1573     1582       +9     
- Misses         41       42       +1     
- Partials       26       27       +1     

Impacted Files	Coverage Δ
pytest_bdd/scenario.py	90.90% <84.61%> (-0.76%)	⬇️
pytest_bdd/parser.py	99.54% <100.00%> (+<0.01%)	⬆️

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[olegpidsadnyi]

@elchupanebrej have a look. I started sketching out some preparations for the multiple scenario examples

[mawaliya]

Hi, what is the status of this ticket?

[blaisep]

@olegpidsadnyi ,
#378 (comment)