Added Easing library with its documentation

Examples/Easing/BasicUsage.hws

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+/********************************************************************
+ * EASING Example, Basic usage                                      *
+ * ---------------------------------------------------------------- *
+ * Author  : Fabio Falcucci (Allanon)                               *
+ * License : Freeware                                               *
+ * Version : 1.0                                                    *
+ * Release : -                                                      *
+ * Dependancies : Easing.hws                                        *
+ *                                                                  *
+ * PayPal Support                                      hijoe@tin.it *
+ * Support me on Patreon!         https://www.patreon.com/Allanon71 *
+ * Bitcoin                              https://coindrop.to/allanon *
+ *                                                                  *
+ * Github repo (leaving)               https://github.com/Allanon71 *
+ * Gitea repo (updated)      https://gitea.it/allanon/HollywoodLibs *
+ * ---------------------------------------------------------------- *
+ */
+
+; 1. Include the Easing library
+@INCLUDE "../../+Includes.hws"
+@INCLUDE #INC_EASING
+
+; @INCLUDE "Easing.hws"
+ 
+; 2. Setup a tween for a text string that will cross the screen in 10 seconds
+; We need a table to hold the text position
+Local textPos = { x = 0, y = 320 }
+ 
+; Let's start the transition
+tween.start(10000,          ; 10 seconds = 10*1000 milliseconds
+            textPos,        ; The table where we have our variable we want to smoothly change
+            { x = 600 },    ; One or more targets : in this case we want to reach x=640 in 10 seconds
+            "inoutelastic",  ; The name of the easing function we want to use
+            Function()      ; A function to call when the transition ends, here we are using an anonymous function to print a message
+              NPrint("Transition Ended! Click Left Mouse Button")
+              WaitLeftMouse()
+              End
+            EndFunction
+            )
+
+; 3. We need a function we will call regurarly to update and render
+;    the scene, we also need a variable to store the previous execution
+;    time so we can calculate the delta time.
+Local previousTime = 0
+Local timer = StartTimer(Nil)
+
+Function renderer()
+  ; Calculate the delta time
+  Local currentTime = GetTimer(timer)
+  Local deltaTime = currentTime - previousTime
+  
+  ; Update previousTime variable
+  previousTime = currentTime
+  
+  ; Clear the screen
+  Cls()
+  
+  ; Update the tweens
+  tween.update(deltaTime)
+  
+  ; Render the object
+  TextOut(textPos.x, textPos.y, "HELLO!")
+
+EndFunction
+
+; 4. Setup a Interval function to update & render the tweens @ 100FPS
+;    meaning every 10 milliseconds.
+Local rendererInterval = SetInterval(Nil, renderer, 10)
+
+; 5. Setup an infinite loop and watch the result
+Repeat
+  WaitEvent()
+Forever