Moved fmt external out of dynarmic and updated fmt to 10.2.1

externals/CMakeLists.txt

@@ -20,6 +20,14 @@ if (NOT TARGET SPIRV-Headers::SPIRV-Headers)
     add_subdirectory(SPIRV-Headers)
 endif()
 
+# fmt (also used by Dynarmic, so needs to be added first)
+find_package(fmt)
+if (NOT TARGET fmt::fmt)
+    # fmtlib formatting library
+    set(FMT_INSTALL ON)
+    add_subdirectory(fmt)
+endif()
+
 # Xbyak (also used by Dynarmic, so needs to be added first)
 if ((ARCHITECTURE_x86 OR ARCHITECTURE_x86_64) AND NOT TARGET xbyak::xbyak)
     add_subdirectory(xbyak)