Add function to create UUIDs (#1459)

addons/common/CfgFunctions.hpp

@@ -134,6 +134,7 @@ class CfgFunctions {
             PATHTO_FNC(waitAndExecute);
             PATHTO_FNC(waitUntilAndExecute);
             PATHTO_FNC(compileFinal);
+            PATHTO_FNC(createUUID);
         };
 
         class Broken {

addons/common/fnc_createUUID.sqf

@@ -0,0 +1,40 @@
+#include "script_component.hpp"
+/* ----------------------------------------------------------------------------
+Function: CBA_fnc_createUUID
+
+Description:
+    Creates a version 4 UUID (universally unique identifier).
+
+Parameters:
+    None
+
+Returns:
+    UUID [String]
+
+Example:
+    (begin example)
+        private _uuid = call CBA_fnc_createUUID;
+    (end)
+
+Author:
+    BaerMitUmlaut
+--------------------------------------------------------------------------- */
+SCRIPT(createUUID);
+
+private _hexDigits = [
+    "0", "1", "2", "3", "4", "5", "6", "7",
+    "8", "9", "a", "b", "c", "d", "e", "f"
+];
+private _versionByte = "4";
+private _variantByte = selectRandom ["8", "9", "a", "b"];
+
+private _uuid = [];
+for "_i" from 0 to 29 do {
+    _uuid pushBack selectRandom _hexDigits;
+};
+
+_uuid insert [8, ["-"]];
+_uuid insert [13, ["-", _versionByte]];
+_uuid insert [17, ["-", _variantByte]];
+_uuid insert [22, ["-"]];
+_uuid joinString ""