Also add some caches to find task-value names.
Fix some minor issue when referring [var#n] variables. These were always rounded to 2 decimals.
Also added [int#n] to address the same variables as with [var#n] but rounded to integer values, to be used in rules for more reliable comparing.
The parsetemplate function was almost always shown as function with the lowest free memory when called.
The function did make a lot of memory re-allocations and was very hard to read.
This commit is about reducing the memory allocations and speed up the parsing.
Will also fix [this issue reported on the forum](https://www.letscontrolit.com/forum/viewtopic.php?p=39219#p39219)