scons: Add a env.CodeGenerate method to simplify code generation via python scripts.

env.CodeGenerate(
	target = 'my_source.c',
	script = 'my_generator.py',
	source = ['input.txt', 'another.txt'],
	command = 'python $SCRIPT $SOURCE > $TARGET'
)

It will take care generating all appropriate dependencies, including any
module imported by the generator script, and the respective .pyc file
side effects.
1 file changed