IVGCVSW-3177 Refactor Floor reference workload

 * Renamed RefFloorFloat32Workload to RefFloorWorkload
   and updated references to reflect this change.
 * RefFloorWorkload now uses Decoders/Encoders and
   supports the use of multiple data types.
 * Deleted FloorTestImpl.hpp and moved its contents
   into LayerTests.hpp.

Change-Id: Ie079d05f2f6a578172f0fe3024f9607c030bce64
Signed-off-by: James Conroy <james.conroy@arm.com>
diff --git a/src/backends/reference/backend.mk b/src/backends/reference/backend.mk
index 46aac05..f371c8b 100644
--- a/src/backends/reference/backend.mk
+++ b/src/backends/reference/backend.mk
@@ -41,7 +41,7 @@
         workloads/RefDetectionPostProcessUint8Workload.cpp \
         workloads/RefElementwiseWorkload.cpp \
         workloads/RefFakeQuantizationFloat32Workload.cpp \
-        workloads/RefFloorFloat32Workload.cpp \
+        workloads/RefFloorWorkload.cpp \
         workloads/RefFullyConnectedWorkload.cpp \
         workloads/RefGatherWorkload.cpp \
         workloads/RefL2NormalizationFloat32Workload.cpp \