[Seaside-dev] package renaming

[Julian Fitzell]

For those not following the commit list, I just renamed the following packages:

Seaside-WebTools -> Seaside-Tools-Web
Seaside-Squeak-WebTools -> Seaside-Squeak-Tools-Web
Seaside-Tests-WebTools -> Seaside-Tests-Tools-Wev
Seaside-OmniBrowserTools -> Seaside-Tools-OmniBrowser
Seaside-Squeak-OmniBrowserTools -> Seaside-Squeak-Tools-OmniBrowser

I also added a new Seaside-Tools-Core which you will want to load
because Seaside-Environment depends on it.

None of this went into 2.9a3

Julian