fix [#30740] N-panel addon toggle operators crash Blender after screen change (Fatal Python error: GC object already tracked)

Update to 2.64, and make the ticker slower to not eat CPUs.

Elapsed Time off by default, and little fix in positioning.

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While doing some tutorials, realized that when working fullscreen you often lose perception in how much time passed, resulting in unnecessarily long videos.

To tackle this, today I implemented a 'Elapsed Time' feature, with options for color/alpha, size, and reset (to restart the timer without restarting the script).


Thanks to Campbell Barton for guidance, ideas, and just being awesome.

- Noticed in some tests[1] that when speeding up even just 2x the maximum fade time felt small, increased max to 10 (but kept softmax as 5)

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- Use Shift + Alt + C to start display
- Panel was getting big, now only show options if it is actually displaying something
- Updated Wiki link and bumped version to 1.7
- Little changes here and there

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Some improvements and fixes:

- Fade Out Time - option to specify (in seconds) how long until the key event disappears
- Mouse icon can be on left or right, regardless if Display Box is On or not
- Display Last Operator doesn't rely on whether in box mode or not 

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Updated some parts and added some new options:

- Individual color (and alpha support) for text/icon and background box
- Shadows on text for better readability
- Display Last Operator option when box is active
- Background Box is now always drawn (less noise)
- Option to hide the box when no key is pressed and change its width
- Text is drawn on top of the box (used to be below)
- Reshuffled the UI a bit

This is my first commit on this addon, so any feedback is very welcome.
A lot more work is needed in this area we know, but I think in the meantime the changes so far make this addon much more flexible.

- dont import *
- dont use builtin names for vars
- strip trailing white space

general code cleaning
reset multiplier after text has disappeared
support for mousewheel in icon-display
improved fading, using a timer

Plus a few styling enhancements.

[[Split portion of a mixed commit.]]

* fix for grab, click error
thanks to Gaia Clary for his hard work on this script.

adds a Mouse&text grouped modus (with a visual boundingBox), mouse and font be sized separately,
settings will be stored along with the blend file now.

Fixes #28505: Screencast Keys Add-on Crashes Blender

This script is a valuable video tutorial tool & maintained/managed by senior bf-extensions py devs.

[[Split portion of a mixed commit.]]