Renaming core modules to klayout.dbcore, klayout.rdbcore and klayout.tlcore

src/pymod/distutils_src/__init__.py

@@ -1,5 +1,4 @@
 
 # klayout library definition file
 
-__all__ = [ "tl", "db", "lay", "rdb" ]
-
+__all__ = ["tl", "db", "rdb"]

src/pymod/distutils_src/db.py

@@ -0,0 +1 @@
+from dbcore import *

src/pymod/distutils_src/rdb.py

@@ -0,0 +1 @@
+from rdbcore import *

src/pymod/distutils_src/tl.py

@@ -0,0 +1 @@
+from tlcore import *