kernel/team: Allow retrieving more attributes

- Stored the additional start time of each team, expressed by
milliseconds since boot.
- Added more fields to the `team_info` structure. These field
include those provided by the `get_extended_team_info` syscall as
well as the newly introduced `start_time`.
- Extended the `_kern_get_team_info` system call to receive an
additional `size_t` argument. If this size is smaller than or
equal to the size of the old `team_info` structure, the newly
added attributes will not be retrieved.

Change-Id: I22ee6b91ad2ee3b66a7f770036c79a718c5f115c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6390
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Jessica Hamilton <[email protected]>

headers/os/kernel/OS.h

@@ -247,6 +247,15 @@ typedef struct {
 	char			args[64];
 	uid_t			uid;
 	gid_t			gid;
+
+	/* Haiku R1 extensions */
+	uid_t			real_uid;
+	gid_t			real_gid;
+	pid_t			group_id;
+	pid_t			session_id;
+	team_id			parent;
+	char			name[B_OS_NAME_LENGTH];
+	bigtime_t		start_time;
 } team_info;
 
 #define B_CURRENT_TEAM	0