Add instrument simulation

lisainstrument/__init__.py

@@ -6,15 +6,4 @@ from .meta import __version__
 from .meta import __author__
 from .meta import __email__
 
-from .noises import white
-from .noises import violet
-from .noises import pink
-from .noises import red
-from .noises import infrared
-
-from .noises import laser
-from .noises import clock
-from .noises import modulation
-from .noises import backlink
-from .noises import ranging
-from .noises import testmass
+from .lisa import Instrument