Add retry to generated bash scripts

[d-uzlov]

Fix bash script generation for multi-line commands.
Add retry function into bash scripts when --retry argument is specified.
Run all setup and test commands through retry function.
Fix cleanup.

Issue:

• Generate code for running commands manually #39

[d-uzlov]

It seems like this PR broke test name matching:

• Update Go #42

[denis-tingaikin]

Could we add an option --retry and use these changes only and only if the option has presented on generating?