Add benchmark for saved state performance

- Introduced `benchmark_saved_state.gd` to evaluate the performance of the saved state restoration process.
- Implemented JSON integer restoration to handle large integers accurately.
- Added command-line argument parsing for specifying the path to the diagnostic JSON file and optional delta seconds.
- Conducted performance tests at different speeds and logged the elapsed time for six consecutive steps.
- Created a new UID file for the benchmark script.

data/csv_loader.gd

@@ -1,15 +1,16 @@
 class_name CSVLoader
 
+const SPLITTER = '|'
 
-static func load(csv_text: String) -> Array[Dictionary]:
-    var rows: Array[Dictionary] = []
+static func load(csv_text: String) -> Dictionary:
+    var result: Dictionary = {}
 
     var lines := csv_text.strip_edges().split("\n")
 
     if lines.size() < 2:
-        return rows
+        return result
 
-    var headers := lines[0].split(",")
+    var headers := lines[0].split(SPLITTER)
 
     for i in range(1, lines.size()):
         var line := lines[i].strip_edges()
@@ -17,7 +18,7 @@ static func load(csv_text: String) -> Array[Dictionary]:
         if line.is_empty():
             continue
 
-        var values := line.split(",")
+        var values := line.split(SPLITTER)
 
         if values.size() != headers.size():
             push_warning(
@@ -26,11 +27,10 @@ static func load(csv_text: String) -> Array[Dictionary]:
             )
             continue
 
-        var row: Dictionary = {}
+        var elem: Dictionary = {}
 
         for j in range(headers.size()):
-            row[headers[j].strip_edges()] = values[j].strip_edges()
+            elem[headers[j].strip_edges()] = values[j].strip_edges()
 
-        rows.append(row)
-    print(rows)
-    return rows
+        result[elem[headers[0]]] = elem
+    return result

data/owniverse_template.gd

@@ -1,4 +1,4 @@
-class_name OwniverseTemplates
+class_name OwniverseTemplate
 
 #region RU
 const RU := """

data/templates.en.txt.import

@@ -1,3 +0,0 @@
-[remap]
-
-importer="keep"

data/templates.ru.txt.import

@@ -1,3 +0,0 @@
-[remap]
-
-importer="skip"