Add support for mixed precision in contraction scale and bilinear (#936)

* Extract common functionality to separate files

* Reference contraction: Remove incorrect consts from type_converts

* Reference contraction: Add missing type_convert for dst value

* Reference contraction: Fix incorrect order of B matrix dimensions

* Add support for mixed precision in contraction scale and bilinear

* Move using statements from instances to a common file

* Move using statements from examples to a common file

* Fix the order of B matrix dimensions across examples and profiler

* Fix the computation of error threshold

* Make ComputeDataType an optional argument

* Include possible DataType -> ComputeDataType casting error in the threshold

* Remove commented code

include/ck/tensor_operation/gpu/device/impl/device_contraction_multiple_d_xdl_cshuffle.hpp

@@ -112,6 +112,7 @@ template <index_t NumDimM,
           typename CShuffleDataType,
           typename DsDataType,
           typename EDataType,
+          typename ComputeDataType,
           typename AElementwiseOperation,
           typename BElementwiseOperation,
           typename CDEElementwiseOperation,
@@ -156,7 +157,8 @@ struct DeviceContractionMultipleD_Xdl_CShuffle
                                         EDataType,
                                         AElementwiseOperation,
                                         BElementwiseOperation,
-                                        CDEElementwiseOperation>
+                                        CDEElementwiseOperation,
+                                        ComputeDataType>
 {
     using DeviceOp = DeviceContractionMultipleD_Xdl_CShuffle;
 
@@ -310,8 +312,6 @@ struct DeviceContractionMultipleD_Xdl_CShuffle
     using DsGridDesc_M_N = remove_cvref_t<decltype(MakeDsGridDescriptor_M_N({{}}, {{}}))>;
     using EGridDesc_M_N  = decltype(MakeEGridDescriptor_M_N({}, {}));
 
-    using ComputeDataType = ADataType;
-
     // GridwiseGemm
     using GridwiseGemm = GridwiseGemmMultipleD_xdl_cshuffle<
         ADataType, // TODO: distinguish A/B datatype