Re: Add custom flags to nimble install

[vitreo12]

Because I'd simply want the user to run `nimble install` without having to 
provide additional flags when installing my package. This comes from the fact 
that the user can't use the custom flags that I provide in my nimble package 
before cloning the repository first. So, it's not possible to do `nimble 
customInstall /path/to/git/repo` (where the `customInstall` task is defined), 
while it's possible to do `nimble install /path/to/git/repo`