[improvement] target-toolchain not available in build-shell

[mahaase]

basement/classes/cpackage.yaml

Lines 16 to 18 in 6115d59

	buildScript: |
	# Check if we're officially cross-compiling
	cpackageCrossCompiling()

- buildScript: |
+ buildSetup: |
    # Check if we're officially cross-compiling
    cpackageCrossCompiling()

I would prefer to use the new buildSetup stuff here, wouldn't that a good idea?
So the e.g. CL also would be available in build.sh shell.

update: if we do this for ?all? classes, we also could call the functions inside the shell, like cmakeBuild.

[jkloetzke]

Yes, this is a good idea.