Set PDB path for Visual Studio

Ensure the PDB files are output into the same directory and with the same name
as the static library when using Visual Studio.

Resolves fmtlib#3701.

CMakeLists.txt

@@ -312,7 +312,10 @@ set(FMT_DEBUG_POSTFIX d CACHE STRING "Debug library postfix.")
 set_target_properties(fmt PROPERTIES
   VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
   PUBLIC_HEADER "${FMT_HEADERS}"
-  DEBUG_POSTFIX "${FMT_DEBUG_POSTFIX}")
+  DEBUG_POSTFIX "${FMT_DEBUG_POSTFIX}"
+  COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  COMPILE_PDB_NAME "fmt"
+  COMPILE_PDB_NAME_DEBUG "fmt${FMT_DEBUG_POSTFIX}")
 
 # Set FMT_LIB_NAME for pkg-config fmt.pc. We cannot use the OUTPUT_NAME target
 # property because it's not set by default.