All items should be set when creating/modyfing profile

[qarmin]

When creating new profile, after selecting "FastCompile" template, only some of properties are filled and rest probably uses some default values.

The problem is that I don't know which properties are default, so I still need read https://doc.rust-lang.org/cargo/reference/profiles.html, but this project aims to avoid this

[Kobzol]

Hi! That's a good point. I suppose that I assumed that FastCompile will be mostly applied to the dev profile, but it doesn't have to be, of course. I guess that each template should contain the defaults from its "base" profile (FastCompile from dev and the remaining two from release). This should be a rather easy change to be made here, do you want to send a PR? :) If not, I'll fix it.

[Kobzol]

#13 should fix this.