Rename "buffer" to "sampling"

piker/_daemon.py

@@ -137,7 +137,7 @@ _data_mods = [
     'piker.brokers.core',
     'piker.brokers.data',
     'piker.data',
-    'piker.data._buffer'
+    'piker.data._sampling'
 ]
 
 

piker/data/__init__.py

@@ -52,7 +52,7 @@ from ._sharedmem import (
     get_shm_token,
 )
 from ._source import base_iohlc_dtype, Symbol
-from ._buffer import (
+from ._sampling import (
     _shms,
     _incrementers,
     increment_ohlc_buffer,