batch.list to execute current folder

[LudwigCRON]

in the current syntax of the batch.list, the file need to be placed in the parent folder of the simulation testcase:

testcases:
    batch.list
    adder
        tb.sv
        sources.list

while it would be more practical to have

testcases:
    adder
        tb.sv
        batch.list
        sources.list

so that in batch.list the folder is . or ./

[LudwigCRON]

While waiting for the coming beta release it force one to create a sub-directory:

testcases:
    adder
        batch.list
        tc_speed
            tb.sv
            sources.list