feat(api): Add skeleton of new Labware class

Closes #2261

api/opentrons/labware/__init__.py

@@ -0,0 +1,64 @@
+from typing import List, Tuple
+from collections import OrderedDict
+
+
+class Well:
+    """
+    This class represents a well within a labware. It provides methods for
+    specifying a location within a well.
+    """
+
+    def __init__(self) -> None:
+        pass
+
+    def top(self) -> Tuple[float, float, float]:
+        pass
+
+    def bottom(self) -> Tuple[float, float, float]:
+        pass
+
+    def from_center(self) -> Tuple[float, float, float]:
+        pass
+
+
+class Labware:
+    """
+    This class represents a labware, such as a PCR plate, a tube rack, trough,
+    tip rack, etc. It defines the physical geometry of the labware, and
+    provides methods for accessing wells within the labware.
+    """
+    def __init__(self, defintion: dict) -> None:
+        pass
+
+    def wells(self) -> List[Well]:
+        pass
+
+    def wells_by_index(self) -> OrderedDict[str, Well]:
+        pass
+
+    def rows(self) -> List[List[Well]]:
+        pass
+
+    def rows_by_index(self) -> OrderedDict[str, List[Well]]:
+        pass
+
+    def columns(self) -> List[List[Well]]:
+        pass
+
+    def columns_by_index(self) -> OrderedDict[str, List[Well]]:
+        pass
+
+
+def load(name: str) -> Labware:
+    """
+    Load a labware definition by name. Definition must have been previously
+    stored locally on the robot.
+    """
+    pass
+
+
+def load_from_definition(definition: dict) -> Labware:
+    """
+    Create a labware object from a labware definition dict
+    """
+    return Labware(definition)