Make the paths to dot dynamic

[Clijsters]

PSGraph searches for dot.exe (or the dot binary) in 3 locations. I would like to install GraphViz in another directory and I don't have admin rights. That makes it mandatory to pass the dot binary path on ever call to Export-PSGraph. It would be cool to add $env:Path or to make it configurable, so that one could easily add the dot path to %PATH% and is just ready to go

[KevinMarquette]

That is a good idea. I'll try to work that in.

A quick fix is to use $PSDefaultParameterValues

$PSDefaultParameterValues["Export-PSGraph:GraphVizPath"] = "c:\folder\dot.exe"

[KevinMarquette]

I should be able to call Get-Command and use whatever version that finds. Then fall back to using those default paths.