Enable fp8 support (#1101)

* initial checkin

* resolve cr comments

* resolve the build issue

* fix the data correctless issue

* update fp8 header file and update the unit test for fp8 support

* remove fp16 from fp8 headers

* fix ut issue and catch up the latest code from develop

* udate according to cr comments

* update ut according to cr comments

* update num floats for each SumPostDiv from 4 to 6

* update fp8 header file name

* fix the typo

test/common/PtrUnion.hpp

@@ -7,6 +7,7 @@
 #pragma once
 #include "ErrCode.hpp"
 #include "rccl/rccl.h"
+#include "rccl_float8.h"
 #include "rccl_bfloat16.h"
 #include "hip/hip_fp16.h"
 
@@ -43,8 +44,10 @@ namespace RcclUnitTesting
     int64_t*       I8; // ncclInt64
     uint64_t*      U8; // ncclUint64
     __half*        F2; // ncclFloat16
+    rccl_float8*   F1; // ncclFp8E4M3
     float*         F4; // ncclFloat32
     double*        F8; // ncclFloat64
+    rccl_bfloat8*  B1; // ncclFp8E5M2
     rccl_bfloat16* B2; // ncclBfloat16
 
     constexpr PtrUnion() : ptr(nullptr) {}