Add a way to identify the executable as a google-test?

[janwilmans]

I propose to standardise a command-line option to identify the executable as a certain kind of test:
I will propose this to boost.test and catch as well.

see https://github.com/janwilmans/LibIdentify

[gennadiycivil]

Looks stale

[janwilmans]

Hoe does still look stale? Can we just add it? Its loe hanging fruit

[gennadiycivil]

@janwilmans please feel free to open a PR for consideration

[janwilmans]

@gennadiycivil last we talked I think you left the googletest team, are you back now?

[gennadiycivil]

@janwilmans you may be confusing me with @BillyDonahue :-)

[janwilmans]

oh, excuse me please :)

[gennadiycivil]

No worries whatsoever :)