add hemtt support, major refactor

- no longer supports server events
- can now more easily build using hemtt
- extension vastly improved in both structure and functionality
- tested on listen server
- includes schema change

addons/main/functions/fn_writePlayer.sqf

@@ -0,0 +1,21 @@
+params [
+	["_playerId", ""],
+	["_playerUID", ""],
+	["_profileName", ""],
+	["_steamName", ""],
+	["_isJIP", false, [true, false]],
+	["_roleDescription", ""]
+];
+
+private _hash = +(ATNamespace getVariable ["missionContext", createHashMap]);
+
+_hash set ["playerId", _playerId];
+_hash set ["playerUID", _playerUID];
+_hash set ["profileName", _profileName];
+_hash set ["steamName", _steamName];
+_hash set ["isJIP", _isJIP];
+_hash set ["roleDescription", _roleDescription];
+
+"AttendanceTracker" callExtension [":LOG:PRESENCE:", [[_hash] call CBA_fnc_encodeJSON]];
+
+true;