Add automatic prefix handling + test file

[GioseaxMC]

Added nob(), Nob() and NOB() macros for automatic prefixing, to avoid manually adding stuff to the list of macros at the end of file.

The system is completely independent from the existing stripping system as it can be considered just an extension.

void nob(print) (char* mes) {
    printf("> %s\n", mes);
}

void main() {
    nob(print)("This always compiles");
    nob_print("This compiles only without NOB_STRIP_PREFIX defined");
}

the code above will declare the nob_print function or the print function.

[yuI4140]

You need to add the test name into nob.c list of tests, for run it.

[GioseaxMC]

You need to add the test name into nob.c list of tests, for run it.

will do thank you!

[rexim]

Closed due to "No changes to the public API" policy