Make group number in the toxav public API uint32_t

[sudden6]

fixes #606

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This change is 

[iphydf]

Reviewed 8 of 8 files at r1.
Review status: all files reviewed at latest revision, 7 unresolved discussions, some commit checks failed.

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toxav/groupav.c, line 431 at r1 (raw file):

static int groupchat_enable_av(Logger *log, Group_Chats *g_c, uint32_t groupnumber, void (*audio_callback)(Messenger *,
                               uint32_t,
                               uint32_t, const int16_t *, unsigned int, uint8_t, uint32_t, void *), void *userdata)

Formatting.

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toxav/groupav.c, line 458 at r1 (raw file):

int add_av_groupchat(Logger *log, Group_Chats *g_c, void (*audio_callback)(Messenger *, uint32_t, uint32_t,
                     const int16_t *,
                     unsigned int,

Formatting.

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toxav/toxav.h, line 748 at r1 (raw file):

 */
int toxav_add_av_groupchat(Tox *tox, void (*audio_callback)(void *, uint32_t, uint32_t, const int16_t *, unsigned int,
                           uint8_t,

Formatting?

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toxav/toxav.h, line 762 at r1 (raw file):

 */
int toxav_join_av_groupchat(Tox *tox, uint32_t friendnumber, const uint8_t *data, uint16_t length,
                            void (*audio_callback)(void *, uint32_t, uint32_t, const int16_t *, unsigned int, uint8_t, uint32_t, void *),

Formatting.

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toxcore/group.c, line 1117 at r1 (raw file):

 */
void group_lossy_packet_registerhandler(Group_Chats *g_c, uint8_t byte, int (*function)(void *, uint32_t, uint32_t,
                                        void *,

Formatting.

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toxcore/group.h, line 299 at r1 (raw file):

 */
void group_lossy_packet_registerhandler(Group_Chats *g_c, uint8_t byte, int (*function)(void *, uint32_t, uint32_t,
                                        void *,

Formatting.

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toxcore/tox.c, line 1110 at r1 (raw file):

    Messenger *m = tox;
    g_callback_group_namelistchange((Group_Chats *)m->conferences_object, (void (*)(struct Messenger *, uint32_t, uint32_t,
                                    uint8_t,

Formatting.

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Comments from Reviewable

[iphydf]

other than formatting issues.

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Review status: all files reviewed at latest revision, 7 unresolved discussions, some commit checks failed.

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Comments from Reviewable