[Lazarus] lazbuild build IDE profiles

[Mattias Gaertner]

Hi,

lazbuild can now compile an IDE with its build profiles.

To compile the IDE with its standard profile use
lazbuild --build-ide=

To compile the IDE with another profile use
lazbuild --build-ide= --build-mode=profile2

The --build-ide=<options> are now added to options, instead of
replacing them.

Mattias