feat: add initial People Playground mod development kit

extracted_wiki_content/internalReference/gameversion.txt

@@ -0,0 +1,41 @@
+URL: https://wiki.studiominus.nl/internalReference/GameVersion.html
+Title: People Playground Modding - GameVersion
+==================================================
+
+public struct GameVersion
+Class that only contains a constant value with the current game version
+Fields
+public const string Version
+Constant that returns the current game version
+Constant value: "1.28 alpha"
+
+Methods
+public static int GetDifference(string a, string b)
+Returns a negative number if  precedes  ( is older).
+Returns 0 if they are the same.
+Returns a positive number if  succeeds  ( is newer).
+
+public static bool IsOlderThan(string a, string b)
+No description provided
+
+public static bool IsAtLeast(string a, string b)
+No description provided
+
+public static bool IsNewerThan(string a, string b)
+No description provided
+
+public static int ParseBuildIndex(string input)
+Returns an integer that represents the build index of the given version string. The higher the number, the newer the version.
+Format examples:
+
+1.0
+
+0.5.2
+
+1.9 beta
+
+1.19 beta 2
+
+1.78 preview
+
+1.23 preview 5