Change the 'Executable Path' label to 'TTD Trace File Path' or similar when the adapter type is DBGENG_TTD

[riskydissonance]

When executing a TTD trace (which is an incredibly useful feature btw!) it's not clear from the dialog where the run file should go - if anything I'd guess it was the Input File and not the Executable Path.

It's clear in the docs, but because I've the memory of a goldfish every time I come back to this I have to search for the docs again. It'd be useful if it was clear in the form by renaming Executable Path to TTD Trace File Path or something similar and clear when the Adapter Type is DBGENG_TTD.