Missing multimedia key presses

I am implementing a simple keyboard interface for my application and it seems like there are some multimedia keys missing from JUCE. Specifically, Mute, Volume Up, Volume Down don’t seem to be implemented. It was quite simple to add them to the Windows code:

juce_win32_Windowing.cpp Line 700:
const int KeyPress::muteKey = VK_VOLUME_MUTE | extendedKeyModifier;
const int KeyPress::volumeDownKey = VK_VOLUME_DOWN | extendedKeyModifier;
const int KeyPress::volumeUpKey = VK_VOLUME_UP | extendedKeyModifier;

juce_win32_Windowing.cpp Line 3024:
case VK_VOLUME_MUTE:
case VK_VOLUME_DOWN:
case VK_VOLUME_UP:
used = handleKeyUpOrDown (true);
used = handleKeyPress (extendedKeyModifier | (int) key, 0) || used;
break;

juce_KeyPress.h Line 271:
static const int muteKey; // < key-code for a multimedia ‘mute’ key, (not all keyboards will have one)
static const int volumeDownKey; // < key-code for a multimedia ‘volume-down’ key, (not all keyboards will have one)
static const int volumeUpKey; // < key-code for a multimedia ‘volume-up’ key, (not all keyboards will have one)

I’m sure there are similar codes for macOS (I just haven’t done that yet). Are there any issues with adding that to the master source so it is available to everyone?