move mission into src

src/functions/fn_getMilitaryId.sqf

@@ -0,0 +1,37 @@
+/*
+    File: fn_getMilitaryId.sqf
+    Author: KP Liberation Dev Team - https://github.com/KillahPotatoes
+    Date: 2017-09-14
+    Last Update: 2019-12-06
+    License: MIT License - http://www.opensource.org/licenses/MIT
+
+    Description:
+        Converts a number to an ID string.
+
+    Parameter(s):
+        _number - ID number to convert (starts with 0 as first character) [NUMBER, defaults to -1]
+
+    Returns:
+        Military ID [STRING]
+*/
+
+params [
+    ["_number", -1, [0]]
+];
+
+if (_number isEqualTo -1) exitWith {["No valid number given"] call BIS_fnc_error; ""};
+
+_number = _number + 1;
+private _return = [];
+private _alphabetCount = count military_alphabet;
+private _remain = 0;
+
+while {_number > 0} do {
+    _remain = _number % _alphabetCount;
+    _number = floor (_number / _alphabetCount);
+    _return append [_remain - 1];
+};
+
+reverse _return;
+
+(_return apply {military_alphabet select _x}) joinString " "