Update libctl to version 4.5.1 / rev 5 via SR 953786
https://build.opensuse.org/request/show/953786
by user StefanBruens + dimstar_suse
- update to 4.5.1:
* Ignore duplicate consecutive prism vertices (#60).
* Memory bug fixes (#58, #59).
- Fix library SOVERSION in package name.
- Also update homepage URL.