Detection for runner in script

[nikischin]

I have checked the following:

• I've searched existing issues and found nothing related to my issue.

Describe the feature you want to add

As mentioned in #2397 I would like to have a possibility to determine wether the current request is triggered by a runner or as a single request. This will be beneficial especially when using with #2116 and a skip request function.

Usage is like this
bru.isRunner()

Returns either true or false

Mockups or Images of the feature

[helloanoop]

Just merged the PR #3200

New api is bru.getExecutionMode()
This will return

• standalone - when single request is being run
• runner - during collection runner is in progress

[nikischin]

Just merged the PR #3200

New api is bru.getExecutionMode() This will return

• standalone - when single request is being run
• runner - during collection runner is in progress

Thank you so much @helloanoop!

Just one remark, it's req.getExecutionMode() not bru.getExecutionMode(). This does totally make sense, just not to confuse anyone passing by this ticket.