Easing with time and duration

@@ -1013,10 +1013,12 @@
Change progress calculations to make time and duration available to be passed to easing function

@@ -1069,6 +1071,8 @@
Add var declarations for time and duration

@@ -1080,7 +1084,9 @@
Change progress calculations to make time and duration available to be passed to easing function

Signed-off-by: David Benson <dmbenson1978@gmail.com>